How do I enable the Oculus Rift in a Packaged Game?

I am using 4.6 and I have Oculus Runtime 0.4.4 installed. When I run a standalone game from the editor and hit Alt-Enter, the Rift works fine. However, when I package my game, and run it, Alt-Enter doesn’t work at all. I also have added a node at the beginning of gameplay to run the console command “stereo on”, but it doesn’t work at all.

Is there a more formal way to add HMD support to a packaged game? Thanks.