Ignition 7.9 with kepware RedundancyMaster2 Problem

My customer is running two kepserver OPCs.
Each OPC server is connected to a different port of the same PLC, and there is no problem with each PLC connection. And the connection and read/write operation from the Ignition server to each OPC server works without any problem.

However, when connecting to Ignition by tying two OPCs together using kepware redundancy master, the OPC server connection fails.

In a general OPC connection program ( kepware OPC quick client ), it is normally connected to the redundancymaster and read/write tags are also possible.

The following error occurs in Ignition OPC Connection Status