Cannot Command Azir Ghost as Mordekaiser [GAMEPLAY]

As mordekaiser, if you ever ult and kill an enemy Azir, instead of being able to command it with your R, you cannot. It instead follows like an uncontrolled ghost, attacking passively if you do, to the nearest champion, so on, moving at the max range around Mordekaiser. This is a big bug, and has lost me some games in the past where I remove Azir with my ult, but cannot use him.