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CAT Rig Stretch Distorts in Unreal Engine 4

Yo, I’ve been having this issue for a while now. I have a character using a CAT rig in 3DS Max and when I import the animation into Unreal Engine 4, the stretch distorts the model, while it looks just fine in 3DS Max.

This ONLY happens if I rotate the bone.

For example, if I stretch out his palm, everything works fine in Unreal. As soon as I rotate the palm (like the images bellow), it distorts it in Unreal.

Here is a stretch test in Max:

https://forums.unrealengine.com/filedata/fetch?filedataid=145767&type=thumb

Here is what it does in Unreal:

https://forums.unrealengine.com/filedata/fetch?filedataid=145766&type=thumb

Here is how his Palm and Finger bones are setup in the hierarchy tab in Max:

https://forums.unrealengine.com/filedata/fetch?filedataid=145770&type=thumb

I am not sure if this is a problem exporting from 3DS Max or Importing to Unreal.