KORG nanoKEY 2 input issues

Hi!
I have a KORG nanoKEY 2 and, when plugged in, I can use Musescore as a sound player for the keys I press. However, after I enter the note input mode, it doesn't work until I enter a note with my mouse. I can keep pressing keys, nothing happens. The only difference is in the real-time (automatic) mode, where whenever I press a key, a bunch of unwanted notes appear, creating a chord, sometimes overlapping with my note (see the file below).

Is there anything I can do?
I tried installing some drivers for the device but doing so makes the keyboard invisible to my Musescore (latest one).