Black Screen in Packaged Vive VR but not Oculus

I have created multiple projects designed for VR but have had a consistent issue: When playing the packaged .exe using a Vive, the hmd mirror on my monitor is either a black screen, or a static camera fixed at 0,0,0. In the headset, the game operates normally. When using an Oculus, everything works fine, the HMD is mirrored on the monitor properly. This issue only occurs when playing the same package with a Vive.