After a seemingly random amount of time of using the mod, skins will fail to load when used by players. This affects both singleplayer and multiplayer. I am using MultiMC, playing on version 1.12.2. The version of Armourer's Workshop used is 1.12.2-0.50.5. I have found no method to reproduce this, nor have I found one to resolve it. Attached are screenshots of a player, a mannequin, and an NPC from Noppes' Custom Npcs mod all attempting to use the same skin. If need be, I will post my mod list in case any incompatibilities are present that I am unaware of.

Sorry for the delay.

Can you post a debug crash. (hold f3 + c for 10 seconds)

Here's the crash log. The only method I've ever found to fix this is by creating an entirely new instance, but I don't really want to do that every week or two. I'm honestly hoping I'm doing something wrong somewhere so it can be fixed easily.

The mod is not compatible with obfuscate. Am guessing that's what the issue is.

Disabled Obfuscate (and MrCrayfish's Vehicle Mod, since Obfuscate is the core for it) and the skin loaded perfectly fine. I can't begin to thank you enough for helping me out. Armourer's Workshop not working properly was the sole factor in my losing motivation to play Minecraft.