I have a survey with ~15 daily users. Most submissions have no issues, but there is one user whose forms randomly cause this error when generating a feature report. My work-around is to download each photo, screen shot it, and replace the attachment with the screen shot. Once that's done I can export the PDF. Obviously, this is less than ideal.
I've inspected the EXIF data for many of these photos and cannot find what the problem is. This person is using a samsungSM-S908U device, most others are using some version of iOS or a windows surface. That's the onlynotable difference I can find.
Anyone else with this issue?