I managed to properly configure the track, now i see my missing note along with some other unmapped notes. In theory now it should work fine, I'm guessing i was missing the previous part of assigning the right map to the track.
I can't test it now with the drum kit but I'll confirm as soon as i have some time.
Many thanks!!
Edit: It worked! In the end i was missing the Drum Map as output.
Thanks!