I had a project which I was very satisfied with the integration of all the parts, but the drum part was difficult and so I wanted to be able to play the song slower and then work up to speed.
So I warp marked all the measures, which were all 140 bpm, then 139, and did definition from tempo. So when I was playing back, and lowered the tempo, all the parts were playing back in time, both midi and audio, but I noticed, except for the midi drum track which got more and more misaligned. this project was saved under a new name, so I went to the previous one before definition from tempo, and it is in time at 140bpm. So I exported this and verified in Win media player that it is just the drum track, and plays. I import it into the desired project, but find no track with the name I assigned, nothing new added. I also tried to drag the midi file to a midi track created, but it is just blank space. What went wrong?