Camera Upload Stuck On One Photo. Need Help

After much tinkering with the Camera Upload feature I have it working fairly well with my Samsung Galaxy S7 Edge. The only issue I have at the moment, other than it not uploading videos, which I have read is a global issue that needs to be fixed, is whenever I take a photo, it uploads it right away, but then tries to upload one remaining photo that apparently was not uploaded when I first turned the feature on. It tries for over an hour and then seems to time-out. It appears there is a single photo amoungst my hundreds of photos that just doesn’t want to upload. I’d gladly delete it form the phone if there was a way to know which one. Has anyone else had such an issue and if so is there a way to fix it, or to find the offending file that is causing the problem?

Not familiar with android but on iOS, I can see which image is being uploaded while it’s being uploaded.

The other option, I would think, is to look at the raw filenames on your device. Again, if android is like iOS, they are uploaded in as-created sequence. While perhaps painful, two sorted listings, side by side, would allow you to jump a page at a time, checking to see if the file names are still in sync at the bottom. When they break sync, you’re on the correct page. Now compare line by line

Thank you for your reply and attempt to help. What you describe was not the problem, but it seems to have resolved itself. The last photo finally uploaded and it seems to be fine now. When I take new photos with my phone they now seem to upload as the should and in the proper order. Perhaps it was a syncing issue that just needed some time to resolve, but it seems to have fixed itself now. Thanks again.