PMM Query Analytics - There is no query data for the selected host

And in the data dir for the quan agent I see files being posted.

Basedir: /usr/local/percona/qan-agent

-bash-4.1$ pwd
/usr/local/percona/qan-agent/data

-bash-4.1$ ls -ltr
total 8
-rw-r–r-- 1 root root 6072 Jan 16 08:48 qan_1516110481140665389