So, suddenly I am unable to sync more than about 50 of the almost 12,000 photos I have to my iPhone 6s. I have rebooted both the Mac and the iPhone, tried different cables, deleted the iPod Photo Cache, and even ran First Aid in Disk Utility. No fix. I don't get any up front errors in iTunes. If I delete all synced photos and start over, it sometimes will stop at 52 photos synced and sometimes 54...then it will just sit there for about 30 seconds then say the sync is complete. If I try to sync again after that, it just prepares to copy files for a bit then ends the sync, no error. Attached is a screenshot of the logs from the moment I opened iTunes and hit Sync until it was done. I'm assuming the line "CGBitmapContextCreate: unsupported color space." is the culprit since I know iTunes is trying to convert all images into the iPod Photo Cache folder...but that gives me no real leads. Any Google searches I run lead me to people creating apps, not trying to sync their phones. I'm hoping someone here has an idea what I can do!