[CentOS] Bind fails to start after update from 7.1 to 7.2

I am seeing these lines for each domain in the systemd journal:

zone relationship123.com/IN: loading from master file relationship123.com.db failed: file not found
zone relationship123.com/IN: not loaded due to errors.
_default/relationship123.com./IN: file not found


If I change the zone defs to include the full path:

>From 

zone "relationships123.com." IN {
	type master;
	file "relationships123.com.db";
};

To

zone "relationships123.com." IN {
	type master;
	file "/var/named/chroot/var/named/relationships123.com.db";
};

in the config file, named starts, but then fails to provide DNS replies with the following error for each request:

general: error: zone relationships123.com/IN: loading from master file /var/named/chroot/var/named/relationships123.com.db failed: file not found
general: error: zone relationships123.com/IN: not loaded due to errors.

Nothing was changed in the named configuration prior to updating to 7.2

As usual I am using systemctl start named-chroot to start the server.

Any ideas?

Emmett