Creative Cloud file sync quota states 769.1MB/20.0GB, but there's nothing in it, including Archive

Creative Cloud Help / Manage and sync files web page states the following:

Note: A small portion of space is used for administrative purposes so the actual storage space will be slightly less. The amount used varies based on number of user files, generally 100-500kb is used for administrative purposes.

However, there's nothing in FILES or ARCHIVE, so what's using 769.1MB/20.0GB?? This a consistent situation.

Cheers