Hololens 2 Media Player Issues

I am building an application on the hololens 2 and it requires it to play videos (not streamed but from the movie folder).

When emulated everything functions 100% but when deployed the the hololens it is very inconsistant.

None of the media player controls in the blueprints effect the animation except the open source which plays the video but it is very inconsistent. Sometimes it works perfectly, other times the video gets stuck on a frame.