Failed to apply retention policy

[ortoscale]

On one of machines backups are done with success, but retention policy apply die each time with timeout. (90% of the time)
Not sure how to handle this. Any ideas ? OS is Centos 7, unfortunately.
I tried restore and it seems to be fine for last 7 days which is default retention point.
I have access both to client and server part of the setup.

[warn] Failed to apply retention policy
15:55:50 Merging oldest incremental backup into full backup file (94% done)
16:23:43 [error] Full backup file merge failed
16:23:43 [error] Failed to perform backup
16:23:43 [error] Connection timed out
16:23:43 [error] Failed to establish SSL connection (Unknown error)

[rovshan.pashayev]

Hello,
That sounds like a technical issue. Please provide a support case ID for this issue, as requested when you click New Topic.

Without case number, the topic will eventually be deleted by moderators.

Best regards,
Rovshan
PS: support can only help if you upload logs https://www.veeam.com/kb1832