[dcoffset]

If all the tracks are in a mix/edit group then playlist edits should work across all the tracks. I would check your group settings as a starting point.

Generally speaking I would never do edits in the playlists with the original takes. I would comp (copy) the segments to a new playlist and edit them in this new playlist. This makes it easy to go back and compare to different takes or recover work if you go too far...