The issue is fixed in Veeam Backup for Nutanix version 2.1 (build 2.1.396, see veeam.com/kb4117 for details). Please consider upgrading to version 2.1 to have your backup infrastructure immune.
If you have Veeam Backup for Nutanix AHV version 2.0, it is sufficient to upgrade only the Veeam Backup & Replication AHV Backup Proxy, keeping Veeam Backup & Replication v10. See Installing Updates. If that update procedure fails please review vee.am/kb4150 for information regarding how to update the repository key.