Lightroom mobile is not syncing to the desktop. However, Lightroom desktop is syncing to Lightroom mobile. For example, every image that I send to Lightroom mobile from Photoshop Fix goes to the Photoshop Fix collection in Lightroom mobile. That collection does appear on the desktop in the From Lr Mobile collection set but it is empty. If I put an image into the Photoshop Fix collection on the desktop it is synced to Lightroom mobile however. The same it true for any image from Photoshop Mix to Lr Mobile. Also files from Fix and Mix show up in Lr Mobile without any capture info.
I've found the following errors in the diagnostic log but I don't know if they are related to my issue.
I have this issue on my iPhone 6 Plus and iPad Air 2 both running iOS 9.0.2. I'm running OS X 10.11 El Capitan on my iMac with Adobe Lightroom CC 2015.2.
I'm having a similar problem too. Will watch this thread.
With the release of Lightroom 2015.2.1 today, my images are now syncing from Lr Mobile to Lightroom desktop.