Hello there!
Optifine crashes in the latest version of forge (1.16.2 - 33.0.5)
It gets to the menu just fine, but when I load/generate a world, it crashes when it finishes the loading/generating process
I'll also make sure to contact the creators of Optifine as well (directly copied from this, obviously removing this line)
I have these mods:
OptiFine_1.16.1_HD_U_G2
VoxelMap-Mod-1.16.2 [removed link - diesieben07]
here is the crash report (I added the options files at the end, in case they are needed)
https://pastebin.com/aKy8NjDK
I also removed optifine and tried it: sure enough, my problem was fixed
in more detail here