While working in TP 4 yesterday I was unable to open for a new session and today I was able to open TP 4 and then. I think Ive found out what is causing the issue. While editing titles and artists and have deleted a track from Finder then gone back to the track to delete from Collection TP 4 closes down and will not open unless I shut down and boot up again. All the editing is not there unless I load the track into a deck will it update the edit and then not always. Grrrrr 😤