Built Project Looses Mouse Function When VR Controllers are Active

I am working on a VR project with the intent to have a mouse and keyboard setup that triggers specific events for the VR player. I have a mouse controlled GUI menu that the VR player cannot see and the desktop user can. When in editor test play, it works as intended but when we build the project, the mouse won't send inputs when BOTH Vive controllers are active. If only one is active, we can still click on menu buttons but the moment the second turns on, the buttons become unresponsive. I have no idea what to do to fix this.