Hi, I've got the same problem. And yeah, it started after a win11 update.
For my soultion you don't even have to close and restart AAO.
1. unplug-replug usb connector to my X-Touch mini
2. in AAO menu under Hardware/"MIDI devices enabled" uncheck then recheck
And then it works.
Have you found a solution since these posts above?
Or any chance perhaps to implement a clickbutton on the app interface for example next to "Save database now" button which would at least uncheck/recheck the "MIDI devices enabled" function in the background to make it a one click workaround? 🙂