Hi all,

I have a site here which comes across MacroEngine script error occasionally.

I am able to identify that it happens occasionally right after the app pool recycle. The frequency of this error is probably is one time in a month.

The version of the Umbraco is 6.2.1.

Also, I have identified that all the macro scripts throw this error which it reads any property of a Model.

For e.g. Model.showRightNav

The model here is a dynamic node.

These macro scripts errors are logged in the umbraco log. This is one the example of the logged error:

2017-08-03 04:46:03,274 [7] WARN umbraco.macro - [Thread 24] Error loading MacroEngine script (file: /General/Navigation.cshtml, Type: ''. Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IndexOutOfRangeException: Index was outside the bounds of the array. at System.Collections.Generic.Dictionary2.Insert(TKey key, TValue value, Boolean add) at Umbraco.Core.Models.EntityBase.TracksChangesEntityBase.OnPropertyChanged(PropertyInfo propertyInfo) at Umbraco.Core.Models.EntityBase.TracksChangesEntityBase.SetPropertyValueAndDetectChanges[T](Func2 setValue, T value, PropertyInfo propertySelector) at Umbraco.Core.Models.ContentTypeBase.setAllowedContentTypes(IEnumerable1 value) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, Object[] index) at Umbraco.Core.Models.DeepCloneHelper.DeepCloneRefProperties(IDeepCloneable input, IDeepCloneable output) at Umbraco.Core.Models.ContentTypeCompositionBase.DeepClone() at Umbraco.Core.Persistence.Caching.RuntimeCacheProvider.GetById(Type type, Guid id) at Umbraco.Core.Persistence.Repositories.RepositoryBase2.TryGetFromCache(TId id) at Umbraco.Core.Persistence.Repositories.RepositoryBase2.Get(TId id) at Umbraco.Core.Services.ContentTypeService.GetContentType(Int32 id) at umbraco.cms.businesslogic.ContentType.setupNode() at umbraco.cms.businesslogic.ContentType.<>c__DisplayClassb.<GetDataType>b__a(Tuple2 tuple) at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func2 valueFactory) at umbraco.MacroEngines.DynamicNode.TryGetPropertyData(PropertyResult propResult, Object& result) at umbraco.MacroEngines.DynamicNode.TryGetMember(GetMemberBinder binder, Object& result) at CallSite.Target(Closure , CallSite , Object ) at ASP.PagemacroScriptsGeneralNavigationcshtml.Execute() in d:\inetpub\wwwroot\ASIC-Main-Phase2\macroScripts\General\Navigation.cshtml:line 38 at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() at System.Web.WebPages.WebPage.ExecutePageHierarchy() at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) at umbraco.MacroEngines.RazorMacroEngine.ExecuteRazor(MacroModel macro, INode currentPage) at umbraco.MacroEngines.RazorMacroEngine.Execute(MacroModel macro, INode currentPage) at umbraco.macro.loadMacroScript(MacroModel macro) at umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId)

Does anyone encounter this before? Thanks in advance for any help.