Ue4 Startup Mov wont play

My game plays perfectly fine normally, but whenever I try to start it using the UE4 Logo Mov the screen stays black forevor and the video never plays. Any idea why this is like this?

Hi
This forum post helped me to do what you’re looking for.

https://forums.unrealengine.com/development-discussion/content-creation/71963-startup-movie-help?100102-Startup-movie-help=