systemctl reporting correctly?

I have two BBB’s, both are configured identically, both with the exact same image and updates, yet if I run systemctl on both, I get different results.

On one of the BBB’s, it reports:
mpd.service loaded failed failed Music Player Daemon
mysql.service loaded active running MySQL database server

Whilst on the other, it reports:
mpd.service loaded active running Music Player Daemon
mysql.service loaded active running MySQL database server
mysqld.service loaded failed failed mysqld.service

On the first BBB no mysqld service is listed, but on both BBB’s mysql is running and is active.

So what does this tell me?

Thank you,

I’ve fixed the issued with the mysqld.service not running on one of the boards and now that they are both running niether BBB is running the Music Player Daemon, so I assume there is some conflict between these services ?