mod list: https://paste.gg/p/anonymous/925b9d82cc444bb5ad723f6a59c6cb9a
crash report: https://paste.gg/p/anonymous/0c825ed76283446e968ace4fba2f2e92
After generating a new world, just as recipes are loading, the game freezes and hangs indefinitely.

versions:
MC 1.16.5
FORGE 36.1.32
OSV 6.2

For now I'll disable OSV and try to remember to reenable it when this bug report is resolved (:

Erm... apparently this isn't OSV. Huh.

...or is it?! At this point I can't tell.

Okay, it is, I got confused for a moment by an unrelated Quark issue. The problem is with OSV. Sorry for the spam!

I'm pretty sure this is only possible if some other mod has made changes to RecipeManager#recipes and thus is not a bug with OSV.
I'll take another look tonight just to double check, but honestly, I can't fix this unless I know which mod is causing the problem.
If you have the time, please confirm whether this crash still occurs for you with no other mods present.

Okay, just a minute...

I can confirm that it does not happen on its own. I suspect Extended Crafting since the crashes started after adding that mod.

edit: nope i was wrong, time for a binary search i guess ):

edit 2: i am extremely confused. It's working now, sorry for wasting your time :)

Huh. Cool, thanks!