Challenge
When selecting Databases to Backup Up, the Instance drop-box does not list an option for cluster\instance; instead, there is only an option for node\instance.
In some rare instances, the cluster\instance is available to be selected, but after selecting it, no databases are listed.
Solution
This issue was resolved in Veeam Plug-in for Microsoft SQL Server 12.0.3.1423, which was included in the Veeam Backup & Replication 12 P20230718 ISO.
KB2680: Build Numbers and Versions of Veeam Backup & Replication
KB4474: Build Numbers and Versions of Veeam Plug-ins for Enterprise Applications
