I'm hoping I can get a fix for this, as it's been quite irritating. Whenever I change my entity's model to another playermodel like Barney, it resets to whatever playermodel I'm actually using whenever I jump or even sometimes crouch.

To be more specific, it resets after landing on the ground when I'm in the air, I don't even have to have jumped. Clicking wear sets the entity to what it's set to, but the bug still persists.
Please help me!