>>357872870
Does it have any physics components like rigid bodies attached to it or one of its parents? I had a similar problem where I forgot to get rid of a default cube that had a whole lot of shit like colliders and whatever under a gameobject that had rigid bodies for world space particles.
https://streamable.com/5zfh2b
Unity doesn't like things being told to do the same thing twice at once. Generally overlapping animations for transforms cause objects to freeze in place rather than spaz though.