log file accumulation in /var/log/plesk/PMM

Hi All,

I noticed that in /var/log/plesk/PMM, log files are being created daily which are never cleaned up, resulting in accumulation of old log files. These directories grow, over time, to sizes up to 10 GB. There also seem to be log files being created that are related to backups.
It would be expected that these log directories shouldn't have to be cleaned manually. Is this a bug?