Custom rig animations don't play properly with HumanoidRootPart

I have these animations for a skeleton character, which is composed of 3 meshparts. Without a part in the model named “HumanoidRootPart” the animations work correctly, however once there is a HumanoidRootPart two meshes stop animating and the main body of the skeleton doesn’t tilt like it is supposed to. How do I fix this?

Without HumanoidRootPart

With HumanoidRootPart

Try unanchoring “HumanoidRootPart”, and make it CanCollide is set to false.
If that doesn’t work, make sure the mainpart is HumanoidRootPart

That’s all been done, unfortunately didn’t fix the issue.

The fact that it’s using the skinned mesh beta might be a reason why it isn’t animating correctly. Anyone have any ideas?

you have to set the hip height in the humanoid