Rewind/Move 1 measure back can not be changed to the comma key

In Musescore 3 I reassigned the Rewind/Move 1 measure back function to the comma key because that's the way it works in Logic and I want to keep it the same way in Musescore. In Musescore 4 this doesn't work. The key can be assigned but nothing happens when you press it. Assigning the Move 1 measure forward function to the period key still works. So this must be something to do with the comma key...
Hope this will get fixed so I can finally move on from Musescore 3.