Operations from a deleted IPSLA node are still in VNQM.
All IPSLAM / VNQM versions
Note: Create a backup of your database before performing any modifications, in case you need to roll back later.
Run the following query against the database:
UPDATE VoipOperationInstances SET Deleted = 1 WHERE (SourceNodeID NOT IN (SELECT NodeID FROM Nodes)) OR (TargetNodeID IS NOT NULL AND TargetNodeID NOT IN (SELECT NodeID FROM Nodes))
Nightly maintenance will then remove the rows from the database the next time it is run.