So I don't use the Expert RAW app due to its horrible processing. I recently started using Pro mode RAW (Which is at least less processing) to capture 50 MP RAWs, but even though I set it to take images only in RAW, it still captures JPEG images half of the time! Out of 10 images I capture 5 are RAW and the other 5 are JPEGs why? ?

1) The setting is set to capture "ONLY RAW' and not "RAW JPEG" (under  'Pro mode picture format').

2) The camera is set to start in the mode last used which is pro (under 'settings to keep').

So what's the issue? It's frustrating, I tried third-party camera apps but all of them are limited to 12 MP. What's wrong with pro mode? is it a bug? PLEASE HELP. (Kindly don't give generic answers, I have already rechecked settings and cleared data and cache of the camera app, still the issue persists). Thanks.