Only when playing any 2D movie. MP4 mostly..
After about a minute of play, the screen will fade while the audio continues
I will get a message (in Chinese I think) and the 'out of bounds' arrow showing that I have drifted out of the safe zone.
I can move my head toward the direction of the arrow, and the video will come back for a fraction of a second and then return to the same Chinese message and arrow.
I can return to the video list and play a VR movie and it works fine.
If I go back and play any 2D movie, it will return to the same symptom, but sooner.
All movies are being played off the SD card on my Mirage Solo.
My Mirage Solo firmware and android OS and Skybox version are current as of May 15, 2019
If I use the controller to re-center, the screen will come back for a few seconds.
If I use an alternate player to play the same 2D movie, it plays fine.