I have a sandisk card in my Nokia 8. Everything was working fine until one day I don't have permission to delete images on my SD card. I am using Google photos app. When I try to delete images I get a prompt to grant access but when I click yes it just says access denied. I have to delete the images via Files app. It's annoying.
I looked in the settings, photos app has access to modify system settings. I googled and found that I am not the only one with this problem (general android OS problem), but I can't find any solution.