When exporting an FBX that you’ve made edits to back into Unity, make sure the scaling is correct and animation is unchecked. If these are wrong, weird things like physbone misplacement and fur shooting out in all directions may occur. If you see either of these symptoms after export, change the aforementioned settings. See below.
Also uncheck leafbones.
NOTE
I’ve had good results with “FBX All” under “Apply Scalings”.
