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I am having this error for all models i try Skele with.

BEFORE

AFTER



How to replicate:
1. Make a new Animation;
2. Add to animation controller;
3. Press StartEdit;
4. Press in Animation Window keyframe 

What am i doing wrong? 

Reseting to Prefab doesnt temporaly solves it, but as i make keyframes - in all frames i can see borrowing into ground (somethimes theres twitching) - even if start and end has been saved with R.

Br,
Sac