Doesnt work with iCloud photos

The interface on this app is horrible. I have my photos app set up to sync via iCloud - so on my phone I have access to all my photos. The app only lets me select photos that have hi res versions actually on the phone. So - out of the thousands of photos accessible on my phone - there were only 50 that I could print - and not the ones I wanted.

So frustrating...

Im on the latest version of iOS 10 too and the latest version of the app too. Please make it work better with iCloud photos!

gevason about Walmart Photo, v2.7