I’m using the basic Epic Shoulder and Arm components.
Even in T pose, if I rotate the arm to be off T pose in a couple of axis, and then rotate the whole arm in Z. When it nears 180’ the shoulder joint starts spinning on X.
Marking this a bug because I think it is one.
That’s what happened to in this ticket I think.
The issue has been around for a while it seems.
Shoulder rbf joint flip - Support - mGear Framework Forum