For example, I want to delete a section or a measure of the project so I selected all the tracks (ctrl-A) select the range on the timeline bar and do a delete special with delete whole, checked all the markers, tempo, events, ... The issue is it doesn't  delete 'whole'.  The section only got deleted on some tracks but not all tracks.  Tempo and markers are also hit or miss.  The interesting thing is no matter what, it seems to follow the exact same behavior for that project.  The quest