hey
if you use the machanim humanoid character you can also edit this guy and tell machanim which bones should be taken
https://docs.unity3d.com/Manual/class-Avatar.html
also check your export setting
took me a while to figure the right ones – but look in this posting
https://blog.cgcookie.com/forums/topic/stylized-fur-with-freestyle/
I added export settings that work.
if you mesh is streched or broken make sure all scale factors – of all files you use fore your animation have the same scale
– this is very important but a commen msitake if exporting from different files/programms,
Also make sure you do NOT use more than 4 bones per vertices and normalize (means make them count together max 1) in blender- you find this in the wieght mode under – weights- limit toal- set this to 4 – why? because unity does not allow more. and if you sue more than 4 it interpret the skinning to his liking 😉
hope one of these helps.
