So you seem to know what you are talking about, i just restored my iphone 6 with a iTunes backup of a jailbroken ios 8.1 from iphone 5s and restored it to iPhone 6+, but now my thumbnails in the photos app are not showing up, well they are just blank image holders, and when i click on them the pictures are there.. I also had this problem with the text messages and also camera pictures not saving, but i resolved those two issues by changing permissions on a few different folders, does anybody have any idea what folders the photos are stored in the ios firmware.. I have the icloud photo library (beta) on and upload to my photostream also on and i cloud photo sharing... But none of photos show the thumbnails EXCEPT for photos taken with the camera... THANKS oh fyi, i was ablke to see photos in my text messages again after following directions from this thread, it was a permissions problem... So i'm assuming this is too, just dont know where the folders are... I did change permissions on a few folders so far and it didnt work, i think they were called like photostreamdata, photodata, etc...
