Upload only works in BOOTSEL mode and Serial Monitor doesn't work at all

[Jatoxo]

win 10

I can only upload code when I plug in the pico while holding the bootsel button. If I then upload the exact same code again it will fail with "upload error 1" and no further information. So every time I need to replug the board while holding the button to upload anything

Also the Serial monitor does not show anything with a sketch that does nothing but open Serial connection and then print in a loop