I feel like it is most likely another mod doing this, but I cannot figure out what it could be.

Forge 1.20.1

Check the logs, missing models/textures are usually reported there.

I cannot find anything in the logs, which is highly annoying as it makes it harder to figure this out.

Then the only way is to remove mods in parts to isolate the issue.

I'll try that and come back when I hopefully figure it out

I just got an idea on what mod may be the cause of it and I am testing now... though it be nice to say.

well I removed some mods and it's fixed... I think I know what mod it is

It is incompatible with Wiff O Wisp

Works fine for me.

weird... it must be that mod and another... but I have no idea at all what is causing it, and tbh... I got so many damn mods that idk what else could be the culprit. If I someone find out, I'll say.