About a week ago my Lightroom Mobile stopped syncing.
Since then I have tried the following with no luck:
Deleting the sync.lrdata folder
"Delete all data" from Lightroom preferences
Logging in and out
Removing all images from sync collection and adding them again
Re-installing Lightroom mobile on iPad
Tried syncing another catalog with only 4 images
On lightroom.adobe.com it says: You have no synced collections.
Please advice