In Maschine 3, MIDI notes aren't being recorded and can't be drawn with pencil tool

TJBlack

Since buying my MK3, I'm loving it. I've since tried bringing an external synth into the mix, and that's when this issue started.

This happens with USB to MIDI and MIDI cables as well.

When playing the pads in keyboard mode, I can hear the synth, and see the notes light up on the piano roll, but no data is saved during the take, and as mentioned before, I can't draw the notes either.

Any ideas as to what this is?