Removing older backups failed

Removing older backups failed

Hello,
on version build 12000 backup is scheduled to be removed if older than 3 days. Backup folder contains 2 *.ezip files named *.part1.ezip and *.part2.ezip.
After 3 days passed, SDP deletes ONLY *.part1.ezip file while *.part2.ezip file and folder remains on server filling up disk space.
SDP is on Centos 7 with "embedded db".

Any advice or fixes on this?