Vision client redundancy fails

I’m testing redundancy and am having trouble with my test vision client application. The master and backup gateway are connected and sync status is good. Force failover works, but my test vision client application cannot connect to the backup. How can I make the client application connect to the backup? Ignition 8.0.5

Here is the console output at start-up. I’m not sure if the one error is significant:

08:36:32.825 [Thread-0] INFO com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Skipping local challenge - directory doesn't exist.
08:36:32.979 [Thread-0] INFO com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Updated login state. Logged in? true, Username: admin, Roles: [Administrator], Security Zones: null
08:36:32.987 [GatewayConnection-1] INFO com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Received new list of master addresses: [http://192.168.1.36:8088]
08:36:33.000 [GatewayConnection-1] INFO com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Received new list of backup addresses: [http://192.168.1.37:8088]
08:36:33.061 [Thread-4] INFO tags.manager.gwinterface - Tag poll rate changed to 250 ms
08:36:33.062 [ClientExecEngine-1] INFO tags.subscriptions - Changing connected quality to 'Good'
08:36:35.573 [Thread-4] INFO com.inductiveautomation.reporting.client.ReportingClientHook - Starting up Reporting Module. Mode: Trial
08:36:35.757 [Thread-4] ERROR Scripting.ScriptManager.RedundancyTest - Warning: collision at system.util.initialize
08:36:36.149 [AWT-EventQueue-0] INFO vision.App - Starting Up...

And here is the diagnostic window showing the backup connection status: