Unwatched State wrong after cleanup


I have a problem with the unwatched state in my TV shows folder.
Recently I did some cleanup and deleted the first series of some TV shows and after OSMC did the library cleanup the deleted episodes are shown as “Unwatched episodes”. So for example for the TV Show “ABC” I have only series 02 on my disk and OSMC show the entire series 01 as unwatched (24 unwatched episodes).
When I rightclick on the TV show and select “Mark as watched” nothing happens.

Maybe it depends on the trakt addon that I use to sync the watched states to trakt.tv? Someone other has the same issue?

Thank you and have a nice weekend

/edit I use the default OSMC theme

I think that trakt add-on is probably responsible here.