So I was in the new snapshot, flying around in spectator mode, when I noticed a spider in one of the new caves, Below Y = 0. I went to the spider, still in spectator mode, and clicked on it, not expecting anything to happen, when the entire screen blacked out except for a small white box in the top right corner, where the status effect for "night vision" was. I don't have any further information because I quickly Alt+F4'd out of Minecraft, but my theory is that for some reason all the textures un-loaded. I could still hear the spider sounds though, so I know the game was still running. (sorry for the lack of info)

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update: I was able to reproduce the error and i got a crash report:

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---- Minecraft Crash Report -------- Minecraft Crash Report ----// Hi. I'm Minecraft, and I'm a crashaholic.
Time: 2/19/21 2:12 PMDescription: Manually triggered debug crash
java.lang.Throwable at dqq.b(SourceFile:464) at dqs.q(SourceFile:1613) at dqs.e(SourceFile:1025) at dqs.e(SourceFile:688) at net.minecraft.client.main.Main.main(SourceFile:215)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Render threadStacktrace: at dqq.b(SourceFile:464)
– Affected level --Details: All players: 1 total; [ehe['Mariokart778'/101, l='ClientLevel', x=2148.76, y=-16.00, z=107.59]] Chunk stats: 2025, 1521 Level dimension: minecraft:overworld Level spawn location: World: (144,64,48), Section: (at 0,0,0 in 9,4,3; chunk contains blocks 144,-64,48 to 159,319,63), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511) Level time: 45959 game time, 45959 day time Server brand: vanilla Server type: Integrated singleplayer serverStacktrace: at eeg.a(SourceFile:364) at dqs.c(SourceFile:2204) at dqs.e(SourceFile:706) at net.minecraft.client.main.Main.main(SourceFile:215)
– System Details --Details: Minecraft Version: 21w07a Minecraft Version ID: 21w07a Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1059554384 bytes (1010 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) CPUs: 6 JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 21w07a Backend library: LWJGL version 3.2.2 build 10 Backend API: Radeon RX550/550 Series GL version 4.6.14757 Compatibility Profile Context 20.12.1 27.20.14501.28009, ATI Technologies Inc. GL Caps: Using framebuffer using OpenGL 3.0 Using VBOs: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Graphics mode: fancy Resource Packs:  Current Language: English (US) CPU: 6x Intel(R) Core(TM) i5-9400F CPU @ 2.90GHz

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