- Plesk for Linux
"Maximum number of backups in repository" is set to 1 under Scheduled Backup Settings , but it is still possible to create more than 1 backup with different prefixes.
Currently backup rotation works only for backups with the same prefix.
This issue has been considered as software issue, the id is #PPPM-190 and will be fixed in future product updates.
Use the same backup prefix for backups.