It looks to me as if the VMM Powershell Module is not loaded in the background. In the eventlog is logged:
---------------------------------------------------------------------------------
Log Name: Application
Source: Virtual Machine Servicing Tool
Computer: SRV-VMM-001
Description:
System.Management.Automation.CommandNotFoundException: The term 'Get-VMMServer' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the
path is correct and try again.
at System.Management.Automation.CommandDiscovery.LookupCommandInfo(String commandName, CommandOrigin commandOrigin)
at System.Management.Automation.CommandDiscovery.LookupCommandProcessor(String commandName, CommandOrigin commandOrigin, Nullable`1 useLocalScope)
at System.Management.Automation.Runspaces.Command.CreateCommandProcessor(ExecutionContext executionContext, CommandFactory commandFactory, Boolean addToHistory)
at System.Management.Automation.Runspaces.LocalPipeline.CreatePipelineProcessor()
at System.Management.Automation.Runspaces.LocalPipeline.InvokeHelper()
at System.Management.Automation.Runspaces.LocalPipeline.InvokeThreadProc()
---------------------------------------------------------------------------------
I also have SCVMM SP1 running...