Photo upload error

I encountered an error when uploading my photos through Google Chrome (as I always do). Photos were uploaded as duplicates, and some photos were thumbnail size. All of my uploaded observations from the same day had the same issue. I deleted duplicates manually for some of my observations without knowint that image size was variable for the duplicates.

I’m curious why there were duplicates this time? This is the way I always upload observations, but I’ve never encountered this problem.

Platform: Google Chrome, website upload