While not strictly a bug, the Power Duplicate function is very awkward, verging on unusable.
Is their a way that the Duplicate command could be pinned? Power duplication around a rotation target is cumbersome, having to reopen the Edit Menu and find Duplicate every time! Possibly pin it above the Deselect icon on bottom left of screen. Or better still add a 'Power Duplicate' menu command that stays active when selected until it is reselected. Eg. Tap Power Duplicate in menu to turn on, tap screen repeatedly to copy, eg 3 taps 3 copies, then tap Power Duplicate in menu to turn it off again.