Check the programme rather than only its tile
Search for the exact programme and series you saved. Note whether a playable programme page remains and whether any series is currently available. ABC lists expiration of every series, or expiration of the only available series or standalone programme, among the reasons a Watchlist entry may no longer be visible.
For a practical comparison, distinguish a drama with one remaining series from a standalone film whose availability has ended. These are different catalogue states. A missing homepage tile alone cannot tell you whether a title was removed from your list, left the service or is being viewed under another profile.
Understand what the Watchlist remembers
ABC says previously added programmes remain in the Watchlist’s memory even when they expire. If a programme becomes available again, it can reappear automatically. That is a description of saved-list behaviour, not a promise that any particular film or series will return or a schedule for its return.
The Watchlist can also contain a programme and future episodes of that programme. This makes it useful for following a series, but it does not turn the list into a permanent copy of each episode. Record the title and series separately if you need a longer-term personal watchlist independent of current streaming availability.
Rule out a profile or removal change
Confirm that the intended ABC Account and household profile are selected. ABC describes each profile as having its own Watchlist. A television left in another profile can therefore show a different collection without the original collection having been deleted.
If the programme is available, the profile is correct and you previously used Remove from Watchlist, add the programme again from its page. ABC notes that its removal control deletes the series entry rather than individual episodes. For an unresolved case, provide the exact title, series and selected platform to ABC; distinguish a missing saved entry from a programme that no longer has a playable episode.