I recently had a server upgraded from 7.0x to 7.1 to 7.5.2
After the upgrade the items in the domains' crontabs are not running.
They still exist in the crontab for the users and in webmin I can hit the 'run' button and they execute.
They are just not running on a schedule.
I've rechecked the permissions and even gone as far as to test with php scripts set to 777. Still no dice.
Any thoughts or suggestions?

Here is an example of one of the jobs:
php "/home/httpd/vhosts/sorsracing.net/httpdocs/modules.php" "op=modload&name=RLManager&file=cron" > /dev/null

Thanks,
reez/ice51

LMAO.
Ok. I'm an idot.
I assumed (making an a$$ of me) that crond was running after the upgrade.
I searched the 'messages' in webmin system logs for 'cron' for a bit and noticed the last message posted was the 'successfull shutdown of cron'.
Right as the upgrade was starting a few weeks ago.

I guess plesk never restarted it and the box hadn't been booted since.
I cranked it up and all is well.

Note to self. ALWAYS check the obvious first.
-Thanks all,
reez/ice51