Failed to clean up backups

We have limited space in a backup location so we have the bak set to auto delete every 1 day. The following error occurs every 48 hours after a backup. We are using v11.2. Any ideas of what could be causing the failure to delete the file on a regular basis?

Backup Job - 2 backup has failed

Summary (Failed)
Job: Backup Job - 2
Computer: XXXXXXXXXXXX
Date: 10/3/2017 9:00:01 PM
Backup type: Full
Backup archive size: 47.5GB
Database count: 2
MaConfig Full backup: Folder - success
HIL Full backup: Folder - success
Next backup: 2017-10-04 9:00:00 PM - Full
Detailed Log:
• 9:00:01 PM : Starting scheduled job “Backup Job - 2” with backup type “Full”. The computer name: “XXXXXXXXXXXXXXX”. The application version: “11.2.0”
• 9:00:01 PM : The backup folder of the job is “F:\Program Files\Temp\Pranas.NET\SQLBackupAndFTP\backup” with “68.883GB” free space. The temporary folder of the job is “F:\Program Files\Temp\Pranas.NET\SQLBackupAndFTP\backup” with “68.883GB” free space
• 9:00:01 PM : Backing up “.\MAXIMIZER” SQL Server databases
• 9:00:01 PM : Getting maximum file size…
• 9:00:01 PM : The maximum file size: “”
• 9:00:01 PM : Backing up “MaConfig” database to .bak file. Backup type: “Full”. Checksum: “Disabled”
• 9:00:02 PM : “MaConfig” database backup successfully completed. Backup type: “Full”
• 9:00:02 PM : Database “MaConfig” has been successfully backed up to “MaConfig201710032100.bak : 1.609MB”
• 9:00:02 PM : Backing up “HIL” database to .bak file. Backup type: “Full”. Checksum: “Disabled”
• 9:05:48 PM : “HIL” database backup successfully completed. Backup type: “Full”
• 9:05:48 PM : Database “HIL” has been successfully backed up to “HIL201710032100.bak : 47.452GB”
• 9:05:48 PM : Connecting to Folder destination “G:”
• 9:05:48 PM : Reading folder information by path: “G:”
• 9:05:49 PM : The current folder of the destination is “G:”
• 9:05:49 PM : Sending backup of “MaConfig” to Folder destination “G:”
• 9:05:57 PM : Uploading the local file “MaConfig201710032100.bak” into a remote file “MaConfig201710032100.bak”
• 9:05:57 PM : Uploaded 100 % (average speed = 51.5 MB/s)
• 9:05:57 PM : Verifying remote file “MaConfig201710032100.bak” with local one “MaConfig201710032100.bak”
• 9:05:57 PM : Sending backup of “HIL” to Folder destination “G:”
• 9:05:57 PM : Uploading the local file “HIL201710032100.bak” into a remote file “HIL201710032100.bak”
• 9:06:03 PM : Uploaded 100 % (average speed = 49 MB/s)
• 9:22:30 PM : Verifying remote file “HIL201710032100.bak” with local one “HIL201710032100.bak”
• 9:22:31 PM : Cleaning up backups of “Backup Job - 2” job
• 9:22:31 PM : Cleaning up backups of “MaConfig” database at Folder destination “G:”
• 9:22:31 PM : Cleaning up “G:” folder
• 9:22:31 PM : Deleting old backup of “MaConfig”. Backup type: “Full”. Backup time: “10/02/2017 21:06:06”. Files: “MaConfig201710022100.bak”
• 9:22:31 PM : Cleaning up backups of “HIL” database at Folder destination “G:”
• 9:22:31 PM : Cleaning up “G:” folder
• 9:22:31 PM : Deleting old backup of “HIL”. Backup type: “Full”. Backup time: “10/01/2017 21:22:20”. Files: “HIL201710012100.bak”
• 9:22:31 PM : Deleting old backup of “HIL”. Backup type: “Full”. Backup time: “10/02/2017 21:21:42”. Files: “HIL201710022100.bak”
• 9:22:31 PM : WARNING: Destination error: The process cannot access the file ‘G:\HIL201710022100.bak’ because it is being used by another process.
• 9:22:32 PM : WARNING: Destination error: The process cannot access the file ‘G:\HIL201710022100.bak’ because it is being used by another process.
• 9:22:32 PM : WARNING: Destination error: The process cannot access the file ‘G:\HIL201710022100.bak’ because it is being used by another process.
• 9:22:33 PM : WARNING: Destination error: The process cannot access the file ‘G:\HIL201710022100.bak’ because it is being used by another process.
• 9:22:34 PM : ERROR: Failed to clean up backups of “Backup Job - 2” job: [DST-1:1107#1] Failed to delete file “HIL201710022100.bak” > The process cannot access the file ‘G:\HIL201710022100.bak’ because it is being used by another process.
• 9:22:34 PM : Disconnecting from Folder destination “G:”
• 9:22:35 PM : ERROR: Job “Backup Job - 2” finished with “1” errors

Hello,

Thank you for the issue reporting. To investigate this case we need more details, could you please send us the Advanced Log? You can find a short tutorial on how to do it at https://sqlbackupandftp.com/blog/how-to-send-log-to-developers

Sorry for the inconvenience.

The log has been sent.

Thank you, we’ll check it as soon as we can.

Hello Alexander, any word on this issue yet?

Could you please install the latest version of SQLBackupAndFTP - version 11.2.4 and check if it solves the issue.

You can do it by clicking “Help” > “Check for Updates…”.

11.2.4 was already installed and has been since the issue started.

Thank you for the feedback. Please give us some time to check this issue?