Scheduled Tasks list is empty in Plesk at Tools & Settings > Scheduled Tasks (Cron jobs).
rootuser is not available in the System user drop-down list when creating a new scheduled task.
A security policy to forbid the creation of scheduled tasks and/or event handlers running on behalf of the
root user is enabled on the server.
This policy hides all scheduled tasks executed by
psaadm users. Though the tasks are not visible, but they are still executed.
To disable this security policy, apply the following steps:
Connect to the Plesk server via SSH.
Remove the file
on CentOS/RHEL-based distributions:
# rm -f /usr/local/psa/var/root.crontab.lock
on Debian/Ubuntu-based distributions:
# rm -f /opt/psa/var/root.crontab.lock