A couple of basic things…
- You have the output of that track set to the main stereo output channel.
- There is a user preference in the file/preferences menu where you can activate to show the waveform (sorry I don’t remember exactly where in the preferences menu it is).
- You said you activated the track record enable and monitor functions but, did you hit the record button on the transport to record on the record enabled track?
- Did you turn off the track monitor function when playing the track?
Regards. 