I'm using the PS4 app, my watchlist items are disappearing, from 30 to 23 for no reason.
I tried to add Supergirl and The Flash (they vanished) I click add to my TV, says it added and the option remove my tv appears, then a second later it's back to add to my TV.
Down to 21 now
The following cannot be added:
Game of Thrones
DC Legends of Tomorrow