Resource pack randomly stopped working

Hey, I've been playing wynn for years and I don't recall having this problem before. Yesterday it was fine, btw.
When I'm logging in today, my resource pack just isn't working. It says that it'll load (at the part before it shows you the character selection menu) and then it doesn't. After a few minutes the character selection menu shows up, but the resource pack didn't load. I've changed versions, (1.12.2 and 1.12.1), deleted server-resource-packs, relogged a few times, none of that worked. Any suggestions?