Trouble recording

I’m reworking an old file by re-recording two parts of my four-part harmony song. Things were going fine, but now I cannot record a new track. I’ve set the “lead” track to solo for my timing, created a new track (mono), highlighted the new track, and pressed record. Recording starts at the end of the first two existing (of nine) tracks, NOT the new track. I’ve had ZERO difficulties with this procedure until now…half-way through my revisions.

THANK YOU for any help/recommendations.

There is an Audacity preference to “Record on a new track”, (rather than append).
Then when you press record a new track will appear.

Or you can leave that default preference as it is and just press Shift + Record to record on a new track.