The VR Template in 4.14 had a node in the level blueprint to enable stereo mode at the start of the game, but it has been removed in 4.15:
Maybe the "console command" wasn't the best option, and it should instead be either the "start in vr" flag in project settings:
Or the Enable HMD node should be used on begin play
But the VR template should start in VR by default in a packaged game
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-38561 in the post.