Hats aren't loading on my end

As you can see on my profile, my character has a black hat and antlers, along with the moai.

When I’ve joined games lately, the antlers don’t load at all, and my hat’s texture doesn’t load.

I know that other people can see them, it seems to just be me. This has happened in multiple games.

Does this happen in Studio Play Solo as well?
Any errors in the output?

This does happen in Play Solo.

I get all of these errors both in game and in Play Solo:

This is still happening. The weird thing is it works on one computer but not the other.

I’ve noticed that meshes (and unions) sometimes don’t load in play solo and I have to copy/paste them or something around them back into the game to cause it to appear.