Upgrade to NMM 9.2. DAG cannot find Mailbox Databases

Hello,

we´re running a W2K12R2 Networker Server with Networker 9.2.1 and tried to upgrade our Exchange Node from NMM 8.2 to NMM9.2.

- 1 DAG, 6 physical Exchange Nodes, several databases

- DAG federated backup was already configured under 8.2.

- 2 DAG Clients in Networker, 1 for active/passive DB´s and 1 for Standalone DB´s (I know, not necessary, but it worked fine that way)

Now, after the upgrade we see two main Problems:

1) when upgrading DAG with Networker Client wizard we see only the databases of one active/passive pair

2) trying a backup we always get the following error:

"cannot process Argument Transformation on Parameter identity. Cannot convert value `Mailboxdatabase\exchangeserver`. Error: Didn´t find name `exchangeserver`". Parameter Name  ´Identity`.

3) Trying "nsrnmmsv -P" works fine on all six Exchange Servers.

Any Suggestion would be appreciated.

Best regards,

Christian