I had a couple versions of a song I recorded decades ago with a band. One was missing a bit at the beginning and the other the end. That also had some extra parts. On version 2 I mapped out all the measures, with time warp, which involved changing time signature of 11 and 10, and it was pretty well organized. I took the end from version one and pasted onto another track and carefully matched it so it went from the previous section well, but this version was slower. I highlight that part on the new track and tried to to 'set tempo from definition but it was grayed out. I tried a couple more times, and then with only that part on that track, I succeeded, as it wasn’t grayed out. I then selected the part and adjusted the tempo to match the previous part.
Then using the arranger track, I was comparing some of the parts that occured more than once to cut out some. At one jump, the change was noticeable so I zeroed in to refine the positions of the arranger parts. I saw that the starting note was somewhat off the bar line and tried to adjust with the warp, but instead of moving the bar line as before, now it was stretching the part and not aligning. And now I noticed that almost all the notes that were warped to the measures are displaced somewhat and I can’t correct because the parts stretch instead of the bar line moving when I try to adjust. What to do?