Thanks for that information!
Now that you (@AnotherElk) reproduced the issue we know, that the problem must be a combination 3 things:
- Fairphone 2
- Netflix 5.x.
Because Netflix 5.x runs fine on the standard/stock Fairphone OS. And Netflix 5.x also runs fine on my “Samsung Galaxy S4 Mini” with LineageOS-14.1 (with addon-su). And any other apps I tested (including Netflix 4.x and other stuff like Spotify and many more) seem to have a problem.
I only thought about that phone-encryption thing, because I tried to find an explanation why it’s working for @StevenHachel, but not for me. Be the real explanation was, that @StevenHachel runs Netflix 4.x and not 5.x. (see @StevenHachel last message). So I guess we can forget about that phone-encryption thing.