Cannot get settings to save on a new account

Dell laptop, Chrome, Windows 10 Home.

I just opened a new account. I'm trying to load pictures for my Settings.

At first, the pics won't load to the Image/ Picture/ Background settings. I have to go to Previous Uploads, and load them again.

Then, when I hit "Save" on the Settings, the pics display. BUT when I go to another tab- say "Summary" - the pics disappear again. When I got back to Settings, the pics are not there, and I have to reload them again from Previous Uploads. Save still doesn't work though.

Same whenever I hit save I get an add pop up and nothing else