The Percona Server 5.6.44-85.0-1 packages for Debian and Ubuntu suffered an issue where the server would reset the root password to a blank value upon an upgrade. This was fixed in 5.6.44-85.0-2.Referenceshttps://www.percona.com/blog/2019/05/17/percona-server-for-mysql-5-6-44-85-0-is-now-available/https://jira.percona.com/browse/PS-5640