Lightroom Classic CC unexpectedly shuts down with alarming frequency. When I reopen LR my work (collections) are all missing. I have had to use backup to regain my work Clearly that backup does not include work done just prior to shutdown. I send a report each time it happens. I have spent time on the phone with Adobe. I recently migrated all my files from one MacBook Pro to a new one. However, I'm grasping at straws looking for a reason for this problem. The why really doesnt matter much, just fixing it!