The source of my problem is that I can't seem to get Gallery to recognise my SD card photos. It will see some but not others. The default Samsung app called "My Files" can see them all, but in a disorganized fashion (not in their folders). An app called "Solid Explorer" can see all photos in their folder structure. I think it has something to do with Google sabotaging Android by taking SD cards out of the picture (pun intended).
Sent through Verizon from my Samsung Galaxy S5