Just came back about a week ago to reset another 180 days, they didn’t say or ask anything. Passport and printed DTV, stamped in and sent on my way. They didn’t even ask for the TDAC, I did have it though
I just did mine the other day and also had issues uploading the pictures. I used an Apple computer, had to move the pictures to the desktop from the Photos app to get some of them to upload for some reason.