This is an old bug (strange not to have been reported before). To define the direction of rotation, the View Vector is used. However, only the projection matrix was being considered, but in perspective mode, the position of the pivot also matters.
This is an old bug (strange not to have been reported before). To define the direction of rotation, the View Vector is used. However, only the projection matrix was being considered, but in perspective mode, the position of the pivot also matters.