James Foote

Confirmed. Upgraded my SMP server to 14w20a. Difficulty is set to Hard. Mobs are not spawning under normal spawning conditions. Mob spawners are working as normal.

Here is mine as well, I have taken my world file off of my server, and have entered it in single player for testing. Was in game moving around freely for about 10 minutes before it started locking up. I was in the dead zones just fine for those first 10 minutes, then then it started freezing.

[08:58:00 INFO]: Minecraft Launcher 1.3.7 (through bootstrap 5) started on osx...
[08:58:00 INFO]: Refreshing local version list...
[08:58:00 INFO]: Current time is Dec 17, 2013 8:58:00 AM
[08:58:00 INFO]: System.getProperty('os.name') == 'Mac OS X'
[08:58:00 INFO]: System.getProperty('os.version') == '10.9.1'
[08:58:00 INFO]: System.getProperty('os.arch') == 'x86_64'
[08:58:00 INFO]: System.getProperty('java.version') == '1.6.0_65'
[08:58:00 INFO]: System.getProperty('java.vendor') == 'Apple Inc.'
[08:58:00 INFO]: System.getProperty('sun.arch.data.model') == '64'
[08:58:00 INFO]: Refreshing remote version list...
[08:58:00 INFO]: Refresh complete.
[08:58:00 INFO]: Loaded 6 profile(s); selected 'Latest Update'
[08:58:00 INFO]: Refreshing auth...
[08:58:00 INFO]: Logging in with access token
[08:58:05 INFO]: Getting syncinfo for selected version
[08:58:05 INFO]: Queueing library & version downloads
[08:58:05 INFO]: Download job 'Version & Libraries' started (16 threads, 26 files)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1-nightly-20131120/lwjgl-2.9.1-nightly-20131120.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.1-nightly-20131120/lwjgl-platform-2.9.1-nightly-20131120-natives-osx.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/tv/twitch/twitch-platform/5.12/twitch-platform-5.12-natives-osx.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1-nightly-20131120/lwjgl_util-2.9.1-nightly-20131120.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.2/authlib-1.2.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[08:58:05 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Download job 'Resources' skipped as there are no files to download
[08:58:06 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/tv/twitch/twitch/5.12/twitch-5.12.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/tv/twitch/twitch/5.12/twitch-5.12.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Attempting to download /Users/jamesfoote/Library/Application Support/minecraft/versions/1.7.4/1.7.4.jar for job 'Version & Libraries'... (try 0)
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.2/authlib-1.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1-nightly-20131120/lwjgl_util-2.9.1-nightly-20131120.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/tv/twitch/twitch-platform/5.12/twitch-platform-5.12-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.1-nightly-20131120/lwjgl-platform-2.9.1-nightly-20131120-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1-nightly-20131120/lwjgl-2.9.1-nightly-20131120.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[08:58:06 INFO]: Finished downloading /Users/jamesfoote/Library/Application Support/minecraft/versions/1.7.4/1.7.4.jar for job 'Version & Libraries': Used own copy as it matched etag
[08:58:06 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:00.392)
[08:58:06 INFO]: Launching game
[08:58:06 INFO]: Looking for old natives & assets to clean up...
[08:58:06 INFO]: Unpacking natives to /Users/jamesfoote/Library/Application Support/minecraft/versions/1.7.4/1.7.4-natives-1387292286357458000
[08:58:06 INFO]: Launching in /Users/jamesfoote/Library/Application Support/minecraft
[08:58:06 INFO]: Half command: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Xdock:icon=/Users/jamesfoote/Library/Application Support/minecraft/assets/objects/99/991b421dfd401f115241601b2b373140a8d78572 -Xdock:name=Minecraft -Xmx2G -Djava.library.path=/Users/jamesfoote/Library/Application Support/minecraft/versions/1.7.4/1.7.4-natives-1387292286357458000 -cp /Users/jamesfoote/Library/Application Support/minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.2/authlib-1.2.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1-nightly-20131120/lwjgl-2.9.1-nightly-20131120.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1-nightly-20131120/lwjgl_util-2.9.1-nightly-20131120.jar:/Users/jamesfoote/Library/Application Support/minecraft/libraries/tv/twitch/twitch/5.12/twitch-5.12.jar:/Users/jamesfoote/Library/Application Support/minecraft/versions/1.7.4/1.7.4.jar net.minecraft.client.main.Main
[08:58:07 INFO]: Client> [08:58:07] [main/INFO]: Setting user: JimmyDosVeces
[08:58:07 INFO]: Client> [08:58:07] [main/INFO]: (Session ID is token:3732c1d1d1a5448db9e36b980b98f2a9:eaef9c1aa60947f585102a8847fa1182)
[08:58:07 INFO]: Client> [08:58:07] [Client thread/INFO]: LWJGL Version: 2.9.1
[08:58:07 INFO]: Client> [08:58:07] [Client thread/INFO]: Reloading ResourceManager: Default
[08:58:07 INFO]: Client> 
[08:58:07 INFO]: Client> Starting up SoundSystem...
[08:58:08 INFO]: Client> Initializing LWJGL OpenAL
[08:58:08 INFO]: Client>     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[08:58:08 INFO]: Client> OpenAL initialized.
[08:58:08 INFO]: Client> [08:58:08] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[08:58:08 INFO]: Client> 
[08:58:08 INFO]: Client> [08:58:08] [Sound Library Loader/INFO]: Sound engine started
[08:58:08 INFO]: Client> [08:58:08] [Client thread/INFO]: Created: 256x256 textures/items-atlas
[08:58:20 INFO]: Client> [08:58:20] [Server thread/INFO]: Starting integrated minecraft server version 1.7.4
[08:58:20 INFO]: Client> [08:58:20] [Server thread/INFO]: Generating keypair
[08:58:20 INFO]: Client> [08:58:20] [Server thread/INFO]: Preparing start region for level 0
[08:58:21 INFO]: Client> [08:58:21] [Server thread/INFO]: Preparing spawn area: 26%
[08:58:22 INFO]: Client> [08:58:22] [Server thread/INFO]: Changing view distance to 12, from 10
[08:58:22 INFO]: Client> [08:58:22] [Server thread/INFO]: JimmyDosVeces[local:E:908de39b] logged in with entity id 514 at (82.98216648288268, 81.03502683528585, -91.86593064346452)
[08:58:22 INFO]: Client> [08:58:22] [Server thread/INFO]: JimmyDosVeces joined the game
[08:58:29 INFO]: Client> [08:58:29] [Client thread/INFO]: Warning: Clientside chunk ticking took 1573 ms
[09:00:10 INFO]: Client> [09:00:10] [Client thread/INFO]: Warning: Clientside chunk ticking took 394 ms
[09:00:22 INFO]: Client> [09:00:22] [Server thread/INFO]: Saving and pausing game...
[09:00:22 INFO]: Client> [09:00:22] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:00:22 INFO]: Client> [09:00:22] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:00:22 INFO]: Client> [09:00:22] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:00:35 INFO]: Client> [09:00:35] [Server thread/INFO]: Saving and pausing game...
[09:00:35 INFO]: Client> [09:00:35] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:00:35 INFO]: Client> [09:00:35] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:00:35 INFO]: Client> [09:00:35] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:02:17 INFO]: Client> [09:02:17] [Server thread/INFO]: Saving and pausing game...
[09:02:17 INFO]: Client> [09:02:17] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:02:17 INFO]: Client> [09:02:17] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:02:17 INFO]: Client> [09:02:17] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:02:55 INFO]: Client> [09:02:55] [Server thread/INFO]: Saving and pausing game...
[09:02:55 INFO]: Client> [09:02:55] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:02:55 INFO]: Client> [09:02:55] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:02:55 INFO]: Client> [09:02:55] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:03:21 INFO]: Client> [09:03:21] [Server thread/INFO]: Saving and pausing game...
[09:03:21 INFO]: Client> [09:03:21] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:03:21 INFO]: Client> [09:03:21] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:03:21 INFO]: Client> [09:03:21] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:05:55 INFO]: Client> [09:05:55] [Client thread/INFO]: Warning: Clientside chunk ticking took 2326 ms
[09:05:58 INFO]: Client> [09:05:58] [Client thread/INFO]: Warning: Clientside chunk ticking took 2310 ms
[09:06:01 INFO]: Client> [09:06:01] [Client thread/INFO]: Warning: Clientside chunk ticking took 2334 ms
[09:06:03 INFO]: Client> [09:06:03] [Client thread/INFO]: Warning: Clientside chunk ticking took 2317 ms
[09:06:06 INFO]: Client> [09:06:06] [Client thread/INFO]: Warning: Clientside chunk ticking took 2329 ms
[09:06:12 INFO]: Client> [09:06:12] [Client thread/INFO]: Warning: Clientside chunk ticking took 2197 ms
[09:06:13 INFO]: Client> [09:06:13] [Client thread/INFO]: Warning: Clientside chunk ticking took 837 ms
[09:06:16 INFO]: Client> [09:06:16] [Client thread/INFO]: Warning: Clientside chunk ticking took 2313 ms
[09:06:18 INFO]: Client> [09:06:18] [Client thread/INFO]: Warning: Clientside chunk ticking took 2348 ms
[09:06:21 INFO]: Client> [09:06:21] [Client thread/INFO]: Warning: Clientside chunk ticking took 2344 ms
[09:06:24 INFO]: Client> [09:06:24] [Client thread/INFO]: Warning: Clientside chunk ticking took 2344 ms
[09:06:26 INFO]: Client> [09:06:26] [Client thread/INFO]: Warning: Clientside chunk ticking took 2343 ms
[09:06:26 INFO]: Client> [09:06:26] [Server thread/INFO]: Saving and pausing game...
[09:06:26 INFO]: Client> [09:06:26] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:06:26 INFO]: Client> [09:06:26] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:06:26 INFO]: Client> [09:06:26] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:06:30 INFO]: Client> [09:06:30] [Client thread/INFO]: Warning: Clientside chunk ticking took 2342 ms
[09:06:37 INFO]: Client> [09:06:37] [Client thread/INFO]: Warning: Clientside chunk ticking took 2213 ms
[09:06:38 INFO]: Client> [09:06:38] [Client thread/INFO]: Warning: Clientside chunk ticking took 837 ms
[09:06:41 INFO]: Client> [09:06:41] [Client thread/INFO]: Warning: Clientside chunk ticking took 2319 ms
[09:06:43 INFO]: Client> [09:06:43] [Client thread/INFO]: Warning: Clientside chunk ticking took 2329 ms
[09:06:46 INFO]: Client> [09:06:46] [Client thread/INFO]: Warning: Clientside chunk ticking took 2313 ms
[09:06:49 INFO]: Client> [09:06:49] [Client thread/INFO]: Warning: Clientside chunk ticking took 2335 ms
[09:06:51 INFO]: Client> [09:06:51] [Client thread/INFO]: Warning: Clientside chunk ticking took 2344 ms
[09:06:58 INFO]: Client> [09:06:58] [Client thread/INFO]: Warning: Clientside chunk ticking took 2323 ms
[09:07:00 INFO]: Client> [09:07:00] [Client thread/INFO]: Warning: Clientside chunk ticking took 2198 ms
[09:07:01 INFO]: Client> [09:07:01] [Client thread/INFO]: Warning: Clientside chunk ticking took 860 ms
[09:07:04 INFO]: Client> [09:07:04] [Client thread/INFO]: Warning: Clientside chunk ticking took 2311 ms
[09:07:07 INFO]: Client> [09:07:07] [Client thread/INFO]: Warning: Clientside chunk ticking took 2337 ms
[09:07:09 INFO]: Client> [09:07:09] [Client thread/INFO]: Warning: Clientside chunk ticking took 2306 ms
[09:07:12 INFO]: Client> [09:07:12] [Client thread/INFO]: Warning: Clientside chunk ticking took 2332 ms
[09:07:15 INFO]: Client> [09:07:15] [Client thread/INFO]: Warning: Clientside chunk ticking took 2329 ms
[09:07:21 INFO]: Client> [09:07:21] [Client thread/INFO]: Warning: Clientside chunk ticking took 2335 ms
[09:07:24 INFO]: Client> [09:07:24] [Client thread/INFO]: Warning: Clientside chunk ticking took 2204 ms
[09:07:25 INFO]: Client> [09:07:25] [Client thread/INFO]: Warning: Clientside chunk ticking took 838 ms
[09:07:28 INFO]: Client> [09:07:28] [Client thread/INFO]: Warning: Clientside chunk ticking took 2319 ms
[09:07:31 INFO]: Client> [09:07:31] [Client thread/INFO]: Warning: Clientside chunk ticking took 2330 ms
[09:07:34 INFO]: Client> [09:07:34] [Client thread/INFO]: Warning: Clientside chunk ticking took 2311 ms
[09:07:36 INFO]: Client> [09:07:36] [Client thread/INFO]: Warning: Clientside chunk ticking took 2342 ms
[09:07:39 INFO]: Client> [09:07:39] [Client thread/INFO]: Warning: Clientside chunk ticking took 2327 ms
[09:07:41 INFO]: Client> [09:07:41] [Client thread/INFO]: Warning: Clientside chunk ticking took 2323 ms
[09:07:48 INFO]: Client> [09:07:48] [Client thread/INFO]: Warning: Clientside chunk ticking took 2203 ms
[09:07:49 INFO]: Client> [09:07:49] [Client thread/INFO]: Warning: Clientside chunk ticking took 837 ms
[09:07:52 INFO]: Client> [09:07:52] [Client thread/INFO]: Warning: Clientside chunk ticking took 2343 ms
[09:07:55 INFO]: Client> [09:07:55] [Client thread/INFO]: Warning: Clientside chunk ticking took 2308 ms
[09:07:58 INFO]: Client> [09:07:58] [Client thread/INFO]: Warning: Clientside chunk ticking took 2316 ms
[09:08:01 INFO]: Client> [09:08:01] [Client thread/INFO]: Warning: Clientside chunk ticking took 2328 ms
[09:08:04 INFO]: Client> [09:08:04] [Client thread/INFO]: Warning: Clientside chunk ticking took 2323 ms
[09:08:06 INFO]: Client> [09:08:06] [Client thread/INFO]: Warning: Clientside chunk ticking took 2326 ms
[09:08:09 INFO]: Client> [09:08:09] [Client thread/INFO]: Warning: Clientside chunk ticking took 2324 ms
[09:08:15 INFO]: Client> [09:08:15] [Client thread/INFO]: Warning: Clientside chunk ticking took 2197 ms
[09:08:15 INFO]: Client> [09:08:15] [Server thread/INFO]: Saving and pausing game...
[09:08:15 INFO]: Client> [09:08:15] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:08:15 INFO]: Client> [09:08:15] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:08:15 INFO]: Client> [09:08:15] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End
[09:08:18 INFO]: Client> [09:08:18] [Server thread/INFO]: Stopping server
[09:08:18 INFO]: Client> [09:08:18] [Server thread/INFO]: Saving players
[09:08:18 INFO]: Client> [09:08:18] [Server thread/INFO]: Saving worlds
[09:08:18 INFO]: Client> [09:08:18] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Overworld
[09:08:18 INFO]: Client> [09:08:18] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/Nether
[09:08:18 INFO]: Client> [09:08:18] [Server thread/INFO]: Saving chunks for level 'MinnCraft'/The End

Can confirm, same issue happening within our loaded spawn chunks. Areas affected seem to possibly be affected when /setworldspawn is moved.