When I set mine up on Friday, by Sunday it had said I had 40,000 photos and it was up to date, but I have 53,000 photos and it stopped updating. I tried turning off icloud photo library off and on again, but that made things worse, as it wouldn't download photos at all.
I plugged my phone into my computer and delete the photo sqlite database with ifunbox and it started downloading again, overnight I was back to the same 40,000 photos and now my albums are empty.
Been almost a week and still don't have my photo library full synced. I have it on plugged in and I can scroll though the photos and get them to come in. another annoying thing is the screen keeps flashing when pictures are loaded. I picture will load, show the thumbnail, flash back to gray show the thumbnail over and over again.
It's making me want to throw my phone across the room very frustrating.