Whenever I view photos for an individual on the ACOM iPhone app, if there are more thumbnails than what fits on the screen (20), it will not scroll down and let me view/tap the thumbnails lower down. I can pull it upwards but as soon as I let go, it snaps back to the top before I can tap on a photo. My mom has the same problem with the ACOM app for her iPhone.
It's not a massive problem because most of the people in my tree don't have that many photos attached anyway - but a few of them do have 20+ photos. It can be worked around by opening the last thumbnail visable and then tapping the "next" button but it means click through each photo to get to the one I'm looking for. But it is annoying. Just though I put this out there in case ACOM aren't aware of it/anyone else is having the same problem.