I have a personal list “Announced” that I use to track TV shows with an announced air date that’s more than a week ahead. I have added “Star Wars: Skeleton Crew” (which will premiere in December and is also on my watchlist), but Trakt keeps removing it from this personal list.
Why?
That’s usually realted to some app syncing wrong data. Do you have any apps connected?
Yes, I do (and even some API calls I make myself…)
Is there some kind of logging available to research this?
Usually I ask for the user to revoke access to those apps and try adding them again one by one to find out where that data comes from, but you can send a message to support@trakt.tv and they can look into this further if you wish.
We don’t have any logs of removed items for lists. It would be way too much data to track unfortunately.
That’s unfortunate.
Maybe I can stop using my scripts and the 3rd party App for a while to see whether it still occurs.
Better idea: run the script manually (instead of a cron job) and see what happens…
Damn, it was me! 
My script was using the Trakt API to remove items with status in production from my “Announced” list… (it only handled returning series correctly; I did not take in production into account)
Fixed 