Is there a "From Lr mobile" collection listed at the top of your collections and Does Lr Desktop show any sync progress in Lightroom>>Preferences>>Lightroom mobile?
Another way to check whether Lr mobile is syncing your images is to view your Mobile synced collections on Adobe Photoshop Lightroom
Let us know if that helps.
Looks like they are online, but do not get synced to my Mac. Maybe because the do not get added to a collection and just live in the overall container (Lightroom photos)? All other photos get auto added to one of my collections (iPhone Photos) and sync fine. If I manually add the Lr Photos to this collection they get synced. And yes, I have that "From Lr mobile" collection.
Try creating a new collection and add the same set of images and see if they Sync up.
Well as I said. This will work. But shouldn't pictures take within Lr mobile sync automatically?