The game crashes when trying to load a world. This happened when trying to open an already existing void world, and when creating a new one.
Stack trace:
java.lang.IllegalStateException: Close the existing render pass before performing additional commands
at fjd.writeToBuffer(SourceFile:172) ~[1.21.5-pre1.jar:?]
at fjg.createBuffer(SourceFile:146) ~[1.21.5-pre1.jar:?]
at com.mojang.blaze3d.systems.RenderSystem.getQuadVertexBuffer(SourceFile:402) ~[1.21.5-pre1.jar:?]
at grk.a(SourceFile:135) ~[1.21.5-pre1.jar:?]
at grd.a(SourceFile:699) ~[1.21.5-pre1.jar:?]
at grd.a(SourceFile:518) ~[1.21.5-pre1.jar:?]
at fqq.c(SourceFile:1353) ~[1.21.5-pre1.jar:?]
at fqq.f(SourceFile:936) [1.21.5-pre1.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:265) [1.21.5-pre1.jar:?]
The crash no longer happens on 1.21.5 pre-2, however lots of OpenGL errors are being logged, but those seem to be tracked in MC-280490.