Moviebase 2.4.2 - Trakt Sync seems to work only one way

Unfortunately I cannot confirm the same. I still have problems the sync from the “Ratings/Episodes” section. It started to sync (in total 2376 rated Episodes) until there were only 103 left. Then it stopped for about 2 or 3 minutes and then the Application crashed. Restarting it now gives me sync exceptions, empty screens and crashes. Only way to get it working again is deleting the App Data. Something must still be off on that section.

These are screenshots after it stopped syncing and crashed. Is there anyway to debug this further?