TNT Unloading glitch

What's your chunk render distance ?
Check the debug screen (F3) and attach a screenshot of it here.

Render distamce set to around 12 chunks. Second TNT block hasn't exploded in the past week since I reported the bug.

Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report (minecraft/crash-reports/crash-<DATE>-client.txt) here.

Minecraft Crash Report ----
// Don't do that.

Time: 3/6/17 5:22 PM
Description: Manually triggered debug crash

java.lang.Throwable
at bev.az(SourceFile:1708)
at bev.t(SourceFile:1629)
at bev.av(SourceFile:973)
at bev.a(SourceFile:400)
at net.minecraft.client.main.Main.main(SourceFile:124)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Thread: Client thread
Stacktrace:
at bev.az(SourceFile:1708)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bpv['KrozJr'/39617683, l='MpServer', x=18852.67, y=48.74, z=45029.12]]
Chunk stats: MultiplayerChunkCache: 625, 625
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (17493,40,47383), Chunk: (at 5,2,7 in 1093,2961; contains blocks 17488,0,47376 to 17503,255,47391), Region: (34,92; contains chunks 1088,2944 to 1119,2975, blocks 17408,0,47104 to 17919,255,47615)
Level time: 782427 game time, 726335 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 11 total; [bpv['KrozJr'/39617683, l='MpServer', x=18852.67, y=48.74, z=45029.12], zj['item.item.seeds'/39741641, l='MpServer', x=18804.27, y=35.00, z=45001.57], zj['item.item.seeds'/39714752, l='MpServer', x=18806.16, y=34.00, z=45011.93], zj['item.tile.brick'/39738338, l='MpServer', x=18861.21, y=34.00, z=45057.57], bpv['KrozJr'/39617683, l='MpServer', x=9166.39, y=72.54, z=4894.30], zj['item.tile.dirt.default'/39737748, l='MpServer', x=18874.88, y=34.00, z=45044.30], zj['item.tile.brick'/39737749, l='MpServer', x=18872.69, y=34.00, z=45044.13], zj['item.tile.dirt.default'/39737746, l='MpServer', x=18873.29, y=34.00, z=45044.69], zj['item.tile.stoneSlab.stone'/39737747, l='MpServer', x=18875.88, y=34.00, z=45045.28], zj['item.item.seeds'/39755657, l='MpServer', x=18806.29, y=34.00, z=45009.94], zj['item.item.seeds'/39647805, l='MpServer', x=9115.13, y=56.00, z=14902.88]]
Retry entities: 8 total; [zj['item.item.seeds'/39647805, l='MpServer', x=9115.13, y=56.00, z=14902.88], zj['item.item.seeds'/39640174, l='MpServer', x=9112.51, y=56.00, z=14899.36], zj['item.item.seeds'/39629172, l='MpServer', x=9127.81, y=62.00, z=14940.23], zj['item.item.seeds'/39617718, l='MpServer', x=9141.31, y=37.00, z=14887.34], zj['item.item.seeds'/39646672, l='MpServer', x=9102.42, y=32.00, z=14832.52], zj['item.item.seeds'/39634592, l='MpServer', x=9111.48, y=57.00, z=14901.04], zj['item.item.seeds'/39634690, l='MpServer', x=9121.13, y=35.00, z=14880.88], zj['item.item.seeds'/39635939, l='MpServer', x=9109.89, y=58.00, z=14903.14]]
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bnt.a(SourceFile:365)
at bev.b(SourceFile:2544)
at bev.a(SourceFile:409)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 17w06a
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 302246368 bytes (288 MB) / 588791808 bytes (561 MB) up to 4281597952 bytes (4083 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 17w06a
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics GL version 4.0.0 - Build 10.18.10.3574, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: Faithful Texture Pack.zip
Current Language: English (New Zealand)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Celeron(R) CPU N2920 @ 1.86GHz
#@

Crash report saved to: #@!@# C:\Users*my name ommited*\AppData\Roaming\.minecraft\crash-reports\crash-2017-03-06_17.22.12-client.txt

That is the report. I've ommited any person info at the bottom regarding where the game is saved to.

NOTE: This is the second world this glitch has happened on, at completely different coordinates (although in the same snapshot), and a previous detonation of around 10 TNT about 1/2 a minute before this attempt was successful. This was an attempted detonation of around 20 to 30 TNT (Both all in one go, as in you set one off and the others are set off afterwards).

Does this still occur in 1.12-pre2?