I just got the new Arduino Nano RP2040 Connect and already messed a bit with it, i.e. Blink sketch, serial interface, etc. and it all worked inside the Arduino IDE. Then I uploaded the RP2040 MicroPython UF2 from here and now neither the Arduino gets displayed as an USB device in Windows Explorer/macOS Finder nor inside the Arduino IDE under Ports. But I would like to use it again with the Arduino IDE. I can't upload anything anymore.
Tested on both Windows 10 and macOS Big Sur.
Is my boot loader messed up? If so how can I burn it again? I have a spare Arduino Uno if that would help.