I went ahead and double checked this in 4.11 and noticed that you are correct in that this option has been removed from the camera manager. However, could you try using the option “Enable Player Camera Manager Follow Hmd” node and let me know if this works for you?
I just tried setting “Enable Player Camera Manager Follow Hmd” in the level blueprint on BeginPlay, but it didn’t help with the issues I am seeing. I don’t know whether that is because that setting is dependent on bFollowHmdOrientation as specified in the docs or because the issues are due to something else in 4.11p5.
I went ahead and wrote up a report (UE-27134) and I have submitted it to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. I do not have a workaround at this time. Thank you for your time and information.