Black screen every time

Why does my screen go black every time that I finish a track and want to save. The track is there next day but I can not open the app before the next day, i.e. I cannot look and study my most recent track before 12-20 hours later.

I have a similar problem. I need to close the app and restart it to stop the session.

My yearly renewal is up so won’t renew if they don’t fix it.