It seems the camera app does what ever it wants.  When auto scenery mode is off, I can not select the manual scenery mode.  If I'm lucky I can select the scenery mode in Photo Mode. Changing to Beauty Mode. In beauty mode scenery is disenabled. Back to Photo Mode. Scenery is disabled. Can't select any of the scenery modes. Reboot phone. 
What about the slider in Beauty mode? What is the function?  Changing between modes : Video, Camera, Beauty and when lucky I can select scenery mode or enable scenery auto mode I receive an error close other app using camera and camera app crashes.
The panorama stitching is not flawless, You can clearly see to colourchange where the photo is stitched. More a banner colored stitch of the picture.