Installed CWP latest on centos 7, ran cwp update latest.
Ran script to update mysql password, and then login to panel failed with error message, obfuscated and check mysql password etc, so I edited a copy of script to put original password back (which I fortunately had) ran it and then was able to log in normally.
This script worked on my centos 6 previous install on same hardware (and still does) but not on latest centos 7 install with mariadb, there appears to be something in the script that is not operating correctly with this CWP (ver 241), I have tried it out several times and it happens consistently.