[agiefrh46]

If my memory serves me well, i already tried this and it was troublesome to boot my addon to boot another addon, and then keep watching for the kodi player. I'm inclined to revisit this tho, since just using the official Kodi Youtube Library will save me coding all sorts of functionality that addon already has (like subtitles, 1080p+ support etc.).

How about a quick/dirty option?
Not trying to figure out if the file has been played to the end?
Just marking it as watched and forgetting about it?
I'm for one, would be ok with unmarking the watch status once in a while over the erroneously started file instead of marking every file as watched.

And another smallish bug report: the "config file has been screwed, to the greatest luck we've got backup" don't remember the exact wording rarely helps. If it's screwed it means the only option is to restore it manually from backup.