Edge 840 freezes after ejection from Garmin Express

Hey!

After I do anything in Garmin Express with my 840 and once done right-click on it to eject it, the devices freezes in the screen you see below. Only thing that helps is to force a restart.... Latest Garmin Express and Firmware on device installed.

I tried a complete reset as well already, but the behavior stays the same. Anyone has the same issue or has an idea what I could try?

Thanks a lot!