Dan Barron

I can confirm this. The block will disappear when you try to open its inventory

no

fixed in 13w47d

apparently, it was fixed in 13w47b but is broken in 13w37c

Updated to java 7u45 from 7u25 on windows 8.1 and it did not fix it

still in 13w47c

I kept the launcher open and when this happens, this gets spammed in the development console:
[11:57:50 INFO]: Client> [11:57:50] [Client thread/ERROR]: Couldn't render entity
[11:57:50 INFO]: Client> java.lang.NullPointerException
[11:57:50 INFO]: Client> at bou.a(SourceFile:175) [13w47b.jar:?]
[11:57:50 INFO]: Client> at box.a(SourceFile:23) [13w47b.jar:?]
[11:57:50 INFO]: Client> at box.a(SourceFile:11) [13w47b.jar:?]
[11:57:50 INFO]: Client> at boa.a(SourceFile:208) [13w47b.jar:?]
[11:57:50 INFO]: Client> at boa.a(SourceFile:191) [13w47b.jar:?]
[11:57:50 INFO]: Client> at boa.a(SourceFile:168) [13w47b.jar:?]
[11:57:50 INFO]: Client> at bmn.a(SourceFile:376) [13w47b.jar:?]
[11:57:50 INFO]: Client> at bmg.a(SourceFile:994) [13w47b.jar:?]
[11:57:50 INFO]: Client> at bmg.b(SourceFile:814) [13w47b.jar:?]
[11:57:50 INFO]: Client> at azg.af(SourceFile:795) [13w47b.jar:?]
[11:57:50 INFO]: Client> at azg.e(SourceFile:719) [13w47b.jar:?]
[11:57:50 INFO]: Client> at net.minecraft.client.main.Main.main(SourceFile:151) [13w47b.jar:?]

got a crash report this time

is it a windows 8 thing or maybe a java thing? because I also have java 7u25 and windows 8.1 and I get the same thing

forced crash report with computer information

NOT Resolved in 13w47a

When I left the server, the game fixed itself and the blue screen was gone

It let me join a server from the server menu that somehow came from the options menu. Not much better though

I changed "Slime" to "Creeper", remove Size:7, and it didn't break the game

It seems like as long as the stack of entities is present in the world and falling, the screen will turn blue. I reentered a 3rd time and could still hear the slime falling and the screen changed instantly. Here is the command block to summon the entities:
summon Sheep .99 62 .99 {Color:15,Riding:{id:"Slime",Size:7,ActiveEffects:[{Id:14,Duration:1000000,Ambient:1}],Riding:{id:"MinecartRideable"}}}

I re-entered the world and pushed the button on the command block to summon the entities again without replacing the supporting blocks and right when I did that, the screen turned blue again-the stack of entities fell. When I pressed esc and started clicking hoping to hit "save and quit", the multiplayer window opened with the list of servers. when I clicked cancel, the game froze but did not close

After re-launching the game, this is where I was the second time the screen turned blue

I managed to click the video settings under options and that screen was fine but when I clicked done, the game crashed and closed but the launcher did not open and no crash report was made

If it helps, I was in a dark space and I summoned a black sheep riding a slime size 7 with effect 14 lasting 1000000 and ambient, riding a MinecartRideable. The sheep riding slime riding minecart was summoned at .99, 62, .99 which put it almost exactly on the intersection of 4 blocks. The sheep on top had 4 blocks underneath it at level 65 (standing on it your y coordinate was 66) making it look like it was standing but it couldn't move since it was riding a slime. I was underneath the 4 blocks the minecart was on and the light level was 0. I broke 3 of the blocks under the minecart but when I broke the 4th, the screen turned blue, I heard the slime take a few points of damage, then heard the slime try to jump (make the squish sound) as the stack of entities fell into the void and the slime sound got further away.

It just happened again. It seems like everything is running but everything except the numbers is hidden. In-game, pressing ctrl+c for 10 seconds won't cause a crash, I tried multiple times and for longer than 10 seconds but the game didn't close, the launcher didn't open and no new crash report file was made. I can still hear ambient sounds and sounds when I click and break a block. I had a night vision effect but after using /effect clear (typing it but not seeing the words appear on screen0, the screen just got darker.