that’s an old bug - it’s never been resolved and it’s been that way for years in bubble
when you delete a thing it never removes from a list it was in because it is only ever “soft deleted”
the app editor shows it as deleted. the user can no longer see it. but the data is still linked to everything and still evaluates in expressions and still returns to the front end.
the same happens for option sets/data/styles/data tables/data fields etc - basically everything that you think actually gets deleted is never actually deleted.
there’s many forum posts about the “not deleted” issue and it’s never been resolved despite all the security concerns and wu overage charges (you get charged WU for the deleted data)
the search:count getting cached is a new bug from what I can tell.
** for additional clarity I am removing the item from a field/list not “deleting” its record and expecting it to be removed from the field/list