"n track is not responding" error when I try to add more than one extra note to the note range on the step sequencer

In the step sequencer of ntrack, when I try to click the plus button to add more notes to the range of notes (like vertical, as in going from A3-A4 to A3-A#5), it crashes after the second click

Hi Ezra_Lehrer1,

Which instrument are you controlling with the step sequencer?
Which scale is set?
Could you send a screenshot of the step sequencer window?

Andrea