Help please. Ragdoll works great until I set bones to Kinematic!

Development Programming & Scripting Blueprint
1

This is what’s happening. I am trying to implement the new physical animation system, but whenever I apply Kinematic to the bones below the pelvis, I get this stretching effect on the bones above.

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I also have a short video explaining my issues further: https://www.youtube.com/watch?v=hqY5lawLVZg&feature=youtu.be

Thank you!

2

I have an idea that it might be because I have my root bone set to the pelvis. I’ll try adding another bone at the base of the skeleton for the root. This would make sense I guess.