Roblox hat accessory texture moves left when equipped to a character

[eighthpill (fed)]

1. What do you want to achieve? Keep it simple and clear!
   I’m trying to texture a hat model I made in Blender.

2. What is the issue? Include screenshots / videos if possible!
   When the hat is unequipped, the texture is perfectly fine. However, when equipped to a rig, any rig, the texture moves slightly left.

3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
   Yes, I’ve searched on Google, Developer Hub, and third party Roblox forums. I’ve rescaled the model, reuploaded the texture and the .obj file for the model and reinserted them, replaced the texture and mesh id in the SpecialMesh’s properties, recreated the hat accessory itself multiple times, and I have also inserted the accessory into different rigs (I replaced the Dummy, inserted it into the player’s character, etc.), and nothing has worked.

What the texture looks like:
robloxapp-20230801-1118010.wmv (1.1 MB)

Please help!

[IcyMonstrosity (Icy)]

The texture on accessories is compressed to 256x256 if you are not using R15