Copy.com Cloud Synchronization Issues
If you are having weird cloud sync problems when using Copy.com (GIU CopyAgent or command line CopyConsole), just use this command while running sync client:
CopyCmd debug resync
This will throw away any cache and synchronization settings and resync with the copy.com cloud server to guarantee data integrity.
This works on Windows, Mac and Linux, just look for CopyCmd in the Copy app folder.