Bug in Group Policy MMC - not able to add appx to AppLocker rule

Hi,

I have a theory that this happens because the snappin tries to open something as my logged on user, not the admin im using under «run as admin». This is partly based on that im not getting this issue on my DC, where im logged In as the admin. But the packaged apps are not present on the DC, so I must get it running on a client.

First, i open a GPO, and try to expand the «Security» section under Computer Configuration/Policies/Windows Settings. This gives an error msg, and I press OK:

This let me continue browsing. I open Application Control Policies/AppLocker/Packaged app Rules. Then I right click and press“Create new rule”.

When I then go on in the wizard, I press on Select under “Use an installed packaged app as reference”. This gives a new error:

When I press OK, I get this:

Text:

FX:{8A1A4AD2-7F9F-492c-9E1D-F725E3CBF2F0}

Exception has been thrown by the target of an invocation.

Server stack trace: 

   at Microsoft.ManagementConsole.Internal.SnapInMessagePumpProxy.OnThreadException(Object sender, ThreadExceptionEventArgs e)

   at System.Windows.Forms.Application.ThreadContext.OnThreadException(Exception t)

   at System.Windows.Forms.Control.WndProcException(Exception e)

   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)

   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

   at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)

   at Microsoft.Security.Srp.Ux.SrpUxRuleListView.CreateManualRule(RuleType ruleType)

   at Microsoft.ManagementConsole.View.DoAction(Int32 actionId, Boolean selectionDependent, Int32 selectionId, IRequestStatus requestStatus)

   at Microsoft.ManagementConsole.View.ProcessRequest(Request request)

   at Microsoft.ManagementConsole.ViewMessageClient.ProcessRequest(Request request)

   at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)

   at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]: 

   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)

   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)

   at Microsoft.ManagementConsole.Internal.IMessageClient.ProcessRequest(Request request)

   at Microsoft.ManagementConsole.Executive.RequestStatus.BeginRequest(IMessageClient messageClient, RequestInfo requestInfo)

   at Microsoft.ManagementConsole.Executive.SnapInRequestOperation.ProcessRequest()

   at Microsoft.ManagementConsole.Executive.Operation.OnThreadTransfer(SimpleOperationCallback callback)