Only occurs launching onto device from Mac. Did not occur from windows.
Error message is displayed on android device when launching QAGame QAEntry on to it:
Error: CDO Constructor (DeprecatedGearVRControllerComponent): Failed to find /OculusVR/Meshes/GearVRController
Clicking OK loads the level correctly
Devices tested: GooglePixel_9762 OS: 7.1.2 and SamsungGalaxyS7_8344 OS: 7.0
Result: Error message is displayed on device
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-47163 in the post.