Strange error sometimes during machineprovisioned

Hi everybody,

I have this error during some provionning.

I have a custom script... works well last week, but now...some provisionning fails

Anybody have an idea ?

Workflow "WFStubMachineProvisioned" failed with the following exception:

System.InvalidOperationException: CacheMetadata for activity 'DynamicOps.ManagementModel.Workflows.WorkflowStubs.WFStubMachineProvisioned' threw 'System.Xaml.XamlObjectWriterException: Failed to create a 'PointCollection' from the text '300,77.5 300,107.5 300,134.5'. ---> System.ComponentModel.Win32Exception: The operation completed successfully

   at MS.Win32.HwndWrapper..ctor(Int32 classStyle, Int32 style, Int32 exStyle, Int32 x, Int32 y, Int32 width, Int32 height, String name, IntPtr parent, HwndWrapperHook[] hooks)

   at System.Windows.Threading.Dispatcher..ctor()

   at System.Windows.DependencyObject..ctor()

   at System.Windows.Media.PointCollection.Parse(String source)

   at System.Windows.Media.PointCollectionConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)

   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateObjectWithTypeConverter(ServiceProviderContext serviceContext, XamlValueConverter`1 ts, Object value)

   at System.Xaml.XamlObjectWriter.Logic_CreateFromValue(ObjectWriterContext ctx, XamlValueConverter`1 typeConverter, Object value, XamlMember property, String targetName, IAddLineInfo lineInfo)

   --- End of inner exception stack trace ---

   at System.Xaml.XamlObjectWriter.Logic_CreateFromValue(ObjectWriterContext ctx, XamlValueConverter`1 typeConverter, Object value, XamlMember property, String targetName, IAddLineInfo lineInfo)

   at System.Xaml.XamlObjectWriter.Logic_CreateFromValue(ObjectWriterContext ctx, XamlValueConverter`1 typeConverter, Object value, XamlMember property, String targetName)

   at System.Xaml.XamlObjectWriter.Logic_CreateFromInitializationValue(ObjectWriterContext ctx)

   at System.Xaml.XamlObjectWriter.WriteEndMember()

   at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter, Boolean closeWriter)

   at System.Activities.XamlIntegration.FuncFactory`1.Evaluate()

   at System.Activities.DynamicActivity.OnInternalCacheMetadata(Boolean createEmptyBindings)

   at System.Activities.Activity.InternalCacheMetadata(Boolean createEmptyBindings, IList`1& validationErrors)

   at System.Activities.ActivityUtilities.ProcessActivity(ChildActivity childActivity, ChildActivity& nextActivity, Stack`1& activitiesRemaining, ActivityCallStack parentChain, IList`1& validationErrors, ProcessActivityTreeOptions options, ProcessActivityCallback callback)

   at System.Activities.ActivityUtilities.ProcessActivityTreeCore(ChildActivity currentActivity, ActivityCallStack parentChain, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList`1& validationErrors)

   at System.Activities.ActivityUtilities.CacheRootMetadata(Activity activity, LocationReferenceEnvironment hostEnvironment, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList`1& validationErrors)

   at System.Activities.XamlIntegration.ActivityXamlServices.RequiresCompilation(IDynamicActivity dynamicActivity, LocationReferenceEnvironment environment, String& language)'.

   at System.Activities.XamlIntegration.ActivityXamlServices.RequiresCompilation(IDynamicActivity dynamicActivity, LocationReferenceEnvironment environment, String& language)

   at System.Activities.XamlIntegration.ActivityXamlServices.Compile(IDynamicActivity dynamicActivity, LocationReferenceEnvironment environment)

   at System.Activities.XamlIntegration.ActivityXamlServices.Load(XamlReader xamlReader, ActivityXamlServicesSettings settings)

   at System.Activities.XamlIntegration.ActivityXamlServices.Load(XmlReader xmlReader, ActivityXamlServicesSettings settings)

   at System.Activities.XamlIntegration.ActivityXamlServices.Load(TextReader textReader, ActivityXamlServicesSettings settings)

   at DynamicOps.DWE.Manager.WorkerController.ExecuteWorkflowInstance(WorkflowInstance instance)