It appears to be a problem with the full size photos that the Evernote in-app camera takes. When I upgraded to Evernote premium (with larger allowable note sizes), the syncing started to work better, but not perfect. I then started creating notes with Awesome Note which syncs with Evernote. In Awesome Note you are able to take smaller sized photos (200KB instead of 2.5MB). Notes that I created in Awesome Note with smaller photos synced fine. One note wouldn't sync because I added another photo (taken with Awesome Note) to a note previously created with Evernote. All the other photos in the note were full size (2MB) photos. When I reduced all the previous photos to 200KB size (using Windows Office Picture Manager) the note then synced. It appears to be that Evernote needs to give an option for taking reduced size photos with the in-app camera. Otherwise, a good work around seems to be using Awesome Note when creating notes with photos.