How can I fix the connectivity issues between my iMac and Magic Keyboard?
I have an iMac (M1) and have been able to log in normally with the Magic Keyboard. For some time now, I have only been able to log in with the mouse and the on-screen keyboard. Some keys such as Caps Lock or characters work (see image), but the single letter keys do not. My Magic keyboard configuration is in Swiss German. The same thing happens when I log in with a lightning cable/USB. My Magic Keyboard works fine after logging in, so I assume that the problem is not with the keyboard hardware. I have already tried various settings in System Preferences / Accessibility / Keyboard Settings / Keyboard Control, unfortunately without success. Turning the Magic Keyboard on and off does not help either. Can anyone help me? Appreciate your contribution.
[Re-Titled by Moderator]
iMac 24″, macOS 14.5