Since 2 months or so I've been having an issue with some of my avatars, when I'm in FBT the tracking completely stops working. Avatar starts having default animations when I walk around. Arms also don't move the avatar's arms but I can access the menu normally. It only happens to a few models, I uploaded 2 today and one of them has the issue but the other one doesn't. Any idea what causes this? Everything is fine in 3-point.