Copying iCloud to NAS problem

I am trying to copy my photos folders in iCloud to a sub folder buried in my NAS. My iCloud photos are divided into subfolders according to year. Each of these 'year' folders have 12 folders - one for each month.When I copy each 'year' subfolder (the subfolder is the monitored folder) all goes well and I get the photos properly copied to the NAS - including the month subfolders. When I use the iCloud folder as the monitored folder nothing gets copied to the NAS even though all the rules pass. Is there something about the main iCloud folder that prohibits me using it as the monitored folder? (I would add a screen shot to this but can't seem to get it to work either..
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Thanks in Advance
Roy

Thanks in Advance
Roy