Why can’t I watch downloaded Apple TV movies that I bought offline?

I recently bought a few movies on the app Apple TV (I bought the movies permanently… I didn’t rent them). I downloaded the movies to my device so I could watch them offline but for some reasons every time I try to watch any of those movies without an internet connection it tells me I can’t watch them. If I press on a downloaded movie while offline it says „Connect to Wi-Fi to Watch You must connect to a Wi-Fi network in order to play this movie.“ and I don’t get why. Yes I’m sure it’s downloaded and no it isn’t a rented movie. Someone help me please 😭