You may not have any shares on the cache, but that doesn't mean the files aren't temporarily on the cache until moved at night by the mover.
Go to the Tools->Processes and look for a line that starts like this:
inotifywait -m -r -q -e open,attrib,move,create,delete --excludei appdata/...
Copy the complete line and post it here so I can verify inotify is running as it should on your system. Also tell me how many disks you have in your system.