This is usually a mechanical problem from Motor mount/arm twist or frame distortion. It’s often seen on craft with round arms.
I recall seeing a post a couple months ago about the prop adapters failing on that motor/prop power system. Or maybe it was the fasteners, I don’t recall. It seems to me that @Corrado_Steri reported that.
I still wonder what was driving the large Roll command. What was broken when you recovered the craft? Of course this can be misleading as it could have broken upon impact.
Got, it, thanks for the explanation.
Edit: Here is the link about the prop adapter screw failure: