Opening Cinematic Cuts Short

Hi Guys,
Not sure if this is the right section but have an odd issue I need some help resolving. When our game loads, it starts with a brief logo, followed by a cinematic prologue. These play correctly, however, only until the shaders are loaded/compiled for the game, at that point it cuts off the prologue and deposits the player at the main menu no matter what part of the prologue it’s in the middle of. How can I prevent the cut off from happening and ensure the whole video plays before the main menu comes up?

Thank you!