I can see/hear the piano audio from my keyboard I recorded on an Audio Track in playback, but can’t hear anything when I play in real time. The general “Audio In Activity” bar is active though, but not the audio bar on the Audio Track. “Record enable” button of the Audio Track is switched on.
Turn the Track’s Monitor Button on. Then you’ll hear what’s at the Track’s input.
Simple as ever. Would never have found it in the manual.