When using atop as a systemd service it only runs and logs to file once

I am on **CentOS 7** and using **atop v2.6.0** If I run atop manually with the following command everything runs as expected and the log is written to every 10 seconds: /usr/bin/atop -w /var/log/atop/atop_20210320 10 However when running atop as a service with systemd the log is only written to once when the service starts and never updated. I can confirm via ps -ef that the service has initiated the command and it's running: root 2320 1 0 13:34 ? 00:00:00 /usr/bin/atop -w /var/log/atop/atop_20210320 10 Any help would be much appreciated. Thank you.