Some photos from lumnia are nog synchronized to one drive

[WPCentral Question]

Hello, when turning on WIFI on my Lumnia the photos are synched to my one drive. This works fine in most cases. But...sometines not all photos are synchonized. Therefore I now have some "gaps", meaning that some photo's from my phone are not in One Drive. I already tried leaving WIFI on for over 24 hours, but that did not make any difference. Does anybody know how to fix?

Thanks in advance,

Michiel