Hi @marc-knuckle ,
1 ) That's an odd one! I can raise it our end, and see what I can find out. Does it happen for you (and others who are experiencing it) when the device is in Safe Mode too? (How to start my Galaxy device in Safe mode.)
2 ) We've got some very basic smartphone photography guides on the Community here: Smartphone photography. But I reckon @Libb may be your man for some more advanced smartphone photography advice. He's got some guides here for example: Mobile photo: # 1 Sharpness and Mobile photo: #2 Exposure.
@marc-knuckle , No worries.
I've tagged Libb in this thread (so, in theory, he should get a notification that it's here), but if you want to get in direct touch with him, his Community profile is here: https://eu.community.samsung.com/t5/user/viewprofilepage/user-id/753349 (Unsure if you're accessing Community via the Members app or web browser, but the web version has a 'Send a Message' feature on user profiles for sending PM's.)