"Your photos are backing up. Please keep the app open to speed it up." But I definitely do not understand what it means by "SPEED IT UP", because upload stops completly. My iPhone is configured to automatically close after 3 minutes - I think most of the smartphones are configured like this. (In Monument settings Background App Refresh is On.)
Gerhard, you are right, there are some issues related to background uploading. We have been making improvements with regards to background uploading and a new version will be available early next week.
Whatever I try - I think Monument is not uploading at all when the app is closed. Is that really just a matter of speeding up the upload? I'm not quite sure about this - maybe there is another problem with a corrupted photo - but all pics seem to be ok in iOS.