Since i updated to Android 8, my camera is broken. No more Live-Bokeh editing, No more 4K Videos, No more 16:9 shooting. Only 4:3 available. Turned my 550€ phone into a 150€ phone.
Lucky for you you can rollback to the Nougat stable version. Btw, I don't have these issues, camera works better than before.
ye... by loosing all my data...
Definitely bad news, but that's what it means if you want to be a Beta tester. They warn you before you get the Oreo OTA.
If you don't like that, you should not have enrolled and waited until the official release comes out.