List discrepancies

In need of some insight and/or help in regards to the lists.

I was manually adding my Netflix watchlist, for some reason I’ve got 3k+ items on the list and I don’t know why. My list is a mix of shows and films but I don’t know why it’s being populated this way? Because if you look above at my “Watchlist” list, that’s also a mix of films and shows but it’s populated correctly.

Is someone able to shed light on this? Screenshot is from my phone but it’s happening on desktop as well