In the Adobe Creative Cloud desktop application's Files panel, turning on file syncing briefly displays a spinning wheel and then displays the Start Syncing button again, without file syncing occurring. Attempting to repeat the process results in the same behavior.
If you are able to sync some files but not others, see Error: "Unable to sync files".
This issue occurs if the path to the local folder (localURL) is missing from the cloud sync settings file (options.tix) in the CoreSync data directory. To resolve the issue, delete the options.tix file. Follow these steps for your operating system.