More Information:
The problems I reported on happened with my Windows Desktop computer. I made a collection on my McBook Pro, signed in there and was able to sync the collection, view the pictures on Lightroom Adobe.com and on my iPad.
I went back to my desk top, signed in and tried to sync and nothing happened. Zilch. I read another thread in this forum, where it was suggested that you Delete All Data in the Lightroom Mobile preferences. When I did that, the message in my desktop Lightroom said Syncing 26 pictures and counted down to zero. However both lightroom.adobe.com and my iPad showed No Collections and no pictures. I went back and signed my MacBook in again and the transfer works as expected. Is there a problem unique to the Windows version of Lightroom? I'm at my wits end. Please help