Problem RotateView with M plan activated

By setting the universal mode and activating the plane M, in the perspective view the object is rotated ( RotateView) abnormally. I enclose a video to describe my problem. Rhino 5.1 OS X 10.9.5.
Plane M problem.mp4 (12.5 MB)

Hi Simon - I am not sure from the clip what it is that is bugging you - what is the setting in Prepferences > View >Rotate?

-Pascal

The setting is the one I use regularly. Rotates around the axes absolute.