a few days ago I started a new project and when I went to open my reference photos by adding another layer and downloading a picture “on my iPhone” when I clicked on it I got a pop up saying that it could not access my photos and to change my phone setting. So, I followed the instructions and messed with the switch in my settings that would allow me to open photos. Nothing happened and I still cannot open Photos.
It seems an issue with the settings on your iPhone, wherein the access is still not set for the app to use your phone's photos.
Kindly check the settings and allow the app to access the Photos.