Code Fix: Service Instances Missing on Second Server in a 2-Server K2 Farm

Issue Description

When you create 2 service instances in a 2-server K2 farm, the service instances are missing on the second server.

Error Message:

The following HostServer log error occurs:

“"Error","System","2025","InternalMarshalError","SourceCode.Hosting.Server.Runtime.HostLoadBalancedServerManager.ProcessServerMessage","2025 Error Marshalling SourceCode.SmartObjects.Runtime.SmartObjectManagementServer.NotifyServiceInstanceChanged, Type: SourceCode.SmartObjects.Runtime.ChangeAction is not allowed for deserialization."”

Resolution

The fix is available in:

• Nintex Automation K2 (5.8) Fix Pack 13.

1. Ensure you have the correct K2 version and/or Cumulative update installed. See KB001893 to see what Fix Pack level you have installed.
2. Download the latest Fix Pack using the links in the table above for the version you require.
3. Install the Fix Pack to apply the fix.
4. It is recommended to clear browser cache and refresh the page.