There have certainly been some subtle bugs whereby the positioning of some items is not completely stable. Normally this would manifest in items moving further away from the staf unexpectedly when a nearby item is edited. If you have encountered anything like that, please try to construct a minimal case by removing as much of the music in your project as possible while still reproducing the problem, then apply the ‘Silence’ playback template via Play > Playback Template to reduce the file size, and finally zip up and attach the minimal project here with steps to reproduce the problem.