We just got another report of this happening.
It seems the Oculus SDK is telling our games it's being recentered every frame, as if you held down the Oculus home button for 2 sec. We have our own recentering logic that happens after Oculus, but only pay attention to theirs after our initial setup, which is why left/right seem to work before then.
Why it's doing this now, in rare cases such as yours, is a mystery. It may be related to an Oculus firmware upgrade, and could be helped by upgrading to the latest Oculus SDK, which we'll do for next builds.
It seems the Oculus SDK is telling our games it's being recentered every frame, as if you held down the Oculus home button for 2 sec. We have our own recentering logic that happens after Oculus, but only pay attention to theirs after our initial setup, which is why left/right seem to work before then.
Why it's doing this now, in rare cases such as yours, is a mystery. It may be related to an Oculus firmware upgrade, and could be helped by upgrading to the latest Oculus SDK, which we'll do for next builds.