I start my 1.9 Client. I log onto a server (Also happens in Singleplayer) and it's fine. I relog, and I get crazy visual glitches. Screenshots of this (Warning: chat on this server is not very appropriate) : http://imgur.com/a/XE6Tj
F3+C Crash Report:
---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.
Time: 09/03/16 16:27
Description: Manually triggered debug crash
java.lang.Throwable
at bcf.az(SourceFile:1694)
at bcf.t(SourceFile:1615)
at bcf.av(SourceFile:962)
at bcf.a(SourceFile:392)
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 --
Stacktrace:
at bcf.az(SourceFile:1694)
-- Affected level --
Details:
Level name: MpServer
All players: 2 total; [bmt['230Daniel'/18941, l='MpServer', x=86411.04, y=59.24, z=4328.50], bmu['0820'/19007, l='MpServer', x=316.50, y=97.00, z=-418.50]]
Chunk stats: MultiplayerChunkCache: 225, 225
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (86789,50,4673), Chunk: (at 5,3,1 in 5424,292; contains blocks 86784,0,4672 to 86799,255,4687), Region: (169,9; contains chunks 5408,288 to 5439,319, blocks 86528,0,4608 to 87039,255,5119)
Level time: 935269 game time, 6000 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: 3 total; [bmt['230Daniel'/18941, l='MpServer', x=86411.04, y=59.24, z=4328.50], bmu['0820'/19007, l='MpServer', x=316.50, y=97.00, z=-418.50], bmu['0820'/19007, l='MpServer', x=316.50, y=97.00, z=-418.50]]
Retry entities: 0 total; []
Server brand: Spigot
Server type: Non-integrated multiplayer server
Stacktrace:
at bku.a(SourceFile:365)
at bcf.b(SourceFile:2515)
at bcf.a(SourceFile:401)
at net.minecraft.client.main.Main.main(SourceFile:124)
-- System Details --
Details:
Minecraft Version: 1.9
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_66, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 122030400 bytes (116 MB) / 268783616 bytes (256 MB) up to 2134114304 bytes (2035 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.9
LWJGL: 2.9.4
OpenGL: AMD Radeon(TM) R5 Graphics GL version 4.3.12804 Compatibility Profile Context 13.352.1004.1016, ATI Technologies Inc.
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: Serinity HD.zip (incompatible)
Current Language: English (UK)
Profiler Position: N/A (disabled)
CPU: 4x AMD A8-6410 APU with AMD Radeon R5 Graphics
Related issues
Comments

duplicate of MC-62958, if you have not, please use the search function in the future