You forgot to mention a very important piece of information, so we don't know whether it is a front or rear Magic Pie Edge.
The rear motors definitely should have the controller on the left hand side, but I think that the front MP Edge is probably meant to be installed with the controller on the
right hand side just like the Smart Pies:
I suspect that yours is a front wheel, in which case, you will need to refit it correctly so that the brake disc mounting holes are on the left hand side and the controller is on the right, then it will rotate in the correct direction.
Alan