TV app on Mac won't play library

Hi,

So Ive just bought a Macbook Air and Im trying to play my library of TV shows on the TV app.

Every time I press play on a video in my library, it will bring up the video player with a black screen (as if its loading the content) then disappear within a second. No sound would play, no video would load.

Its odd because if I play a video from the watch now section, it will play like normal, it only seems to happen when I actually go into my library.

Any help is appreciated.

Matt.