I'm testing out the new iOS 12 AVCapturePhotoOutput.portraitEffectsMatte.
When it works, it's really great!
But for some reason the matte doesn't get generated if the phone is standing up in a portrait orientation (the matte is always absent no matter what lighting conditions I tried). In the same conditions, the matte IS generated if I change the orientation of the phone such that it is in landscape orientation.
Is this a known limitation of portraitEffectsMatte, or am I missing something?
thanks for any help
-tim