I have an Hotone Ampero that I connected to StageTraxx via bluetooth. I have it sending MIDI Ch2 CC49-52 on buttons 1-4.
Then in StageTrax Settings I have this as Play Song, Stop Song, Next Song (and I didn't see Previous Song, but maybe I just missed it). It learned the commands just fine and they show up in settings.
But when I try to use them nothing happens. Am I missing a step? I tried restarting StageTraxx, the iPad, and still behaves the same way.