Backup Manager in 9.5.2 failing?

[joshua strebel]

Backups since upgrade from 9.2.3 to 9.5.2 appear to be failing. What does this status error mean?

 

[IgorG]

Need more details.

 

[joshua strebel]

image did not attach i guess.

sitewide backups are now red X with: This file is not a valid backup file. message

started the night after upgrade from 9.2.3 to 9.5.2

 

[IgorG]

Try to check this KB article - http://kb.odin.com/en/6080

 

[joshua strebel]

Okay, so validating over 100 backup files is not an ideal solution.

What is the cause of the problem? Why does everything work fine in 9.2.3 but goes kaput the next day with 9.5.2?
If I erase all the backups, will it start fresh and work as intended?