I had an issue with a vocal track I recorded in a new project with X3b. I was recording with two different Mics and recorded five separate passes, stopping between each pass, then hitting record again for the next pass.
When I opened up the take lanes, one of the Mics had lanes labelled 1 to 5, and the other had lanes labelled 1 to 6. I am thinking "where did that other track come from" and "what is on it"?
Turns out there was just some garbled, noisy, rubbish that I couldn't understand on lane 1. I had to re-number all the tracks on that Mic, and delete the rubbish lane, so they matched the numbering of the lanes on the other Mic.
Has only happened the one time, so I thought maybe I'd done something that had caused this to occur. I did hit ctrl-z a couple of times on false starts so maybe that where it comes from.