Description

When an animation sequence has an additive animation track, reimporting a fbx would crash the editor if the new fbx has a different number of frames.

Steps to Reproduce

1. Import anim.fbx in anim1 folder, make sure to import animation and set Default Sample Rate on
2. Add the imported animation an additive animation track(select a bone and add a key)
3. Override the original anim.fbx with another anim.fbx in anim2 folder
4. From the context menu of the animation(anim_Anim), click reimport

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Fixed
ComponentOLD - Anim
Affects Versions4.144.15
Target Fix4.15.1
Fix Commit3321096
CreatedFeb 14, 2017
ResolvedMar 7, 2017
UpdatedMay 18, 2020
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