After installing Exchange2016-KB5032147-x64-en.msp on Exchange Server 2016 that was working fine I now receive the following errors:
Application: hostcontrollerservice.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentException
at System.ThrowHelper.ThrowArgumentException(System.ExceptionResource)
at System.Collections.Generic.Dictionary`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].Insert(System.__Canon, System.__Canon, Boolean)
at Microsoft.Ceres.HostController.Controller.NodeManager.LoadNodeProfiles()
at Microsoft.Ceres.HostController.Controller.NodeManager..ctor(Microsoft.Ceres.HostController.Controller.HostControllerConfiguration, Microsoft.Ceres.HostController.Controller.RuntimeManager, Microsoft.Ceres.HostController.Controller.DeploymentProperties)
at Microsoft.Ceres.HostController.Controller.HostController..ctor(Microsoft.Ceres.HostController.Controller.HostControllerConfiguration, Microsoft.Ceres.HostController.Controller.DeploymentProperties)
at Microsoft.Ceres.HostController.WcfServer.WcfService.InitializeHostController()
at Microsoft.Ceres.HostController.WcfServer.WcfService.StartService()
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ThreadHelper.ThreadStart()
Tried a number of items to resolve the issue but the service refuses to start.