Adobe released a small update to Lightroom CC Desktop this morning. A “double-dot” update like this one fixes issues that can’t wait for a regularly-scheduled update. Lightroom CC 2.1.1 fixes sync issues that were inadvertently present in the 2.1 update earlier this week. I do recommend that you install this update. If you weren’t prompted to do so, go to Help>Updates, and in the CC application click on Update next to Lightroom CC.