Flush Host Connection Blocked, but some connections allowed

We are running Percona MySQL 5.6.30. We've had an issue where a PHP script on a different host was reporting an issue connecting to the database: >Database may be down : SQLSTATE[HY000] Host 'x.x.x.101' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'" We did the flush hosts, and it resolved the issue. When we went back to check the Percona Audit Logs for the same time, we see a number of connections at that same time, from that same host ('x.x.x.101'). I'm trying to understand how a host could be blocked, and not blocked, at the same time. :) Any ideas?