Job ended: Monday, October 4, 2021 at 3:59:31 AM Completed status: Failed Final error: 0x20 - The process cannot access the file because it is being used by another process. Final error category: Other Errors For additional information regarding this error refer to link V-79-0-32
Additional notes: AV not scanning VM files, the VM's are replicated to offsite to a Microsoft 2019 server, HYPER-V Host server is Microsoft 2019 and VM are Microsoft 2012 R2. We have 5 total servers in this configuration and four of the five are working, the fifth worked two weeks ago and we have not made any changes to the environment.
Is within the job log - if you expand all sections - more info about what files are causing this issue?
Otherwise I would try to stop the replication and retest just to rule this out
If no detailed info found in the job log, I would split the job into different sections to see if it is C: or D: or Hyper-V section and then go from there.