This is my first, and likely only forum post, so if there's any error or incorrect way about how I ask about the problem, please let me know.
Crash is only occurring with Forge 1.17.1(Latest 37.0.104)
I've added & removed all mods from the mod folder, and the problem hasn't changed.
Other versions of Minecraft that I play don't crash similar to this, (Forge 1.12, Vanilla 1.17, Optifine 1.17, these all work fine.)
I also believe I'm supposed to include a pastebin of the debug.log, so here's that: https://pastebin.com/cv4JPST9