c# - Freezable exception after logging in remotely and logging back locally -

i getting error reports users logging in remotely application. app works fine until when come office , log directly desktops - app crashes , error report standard 'freezable cannot frozen' none of known workarounds fixing one.

every single brush resource in app decorated ice:freeze:

<solidcolorbrush ice:freeze="true"  

also exception thrown domain unhandled exception there way swallow it.

over last couple of months spent hours analyzing reported issues freezables bot cannot find solution.

.net code problem happens:

    /// <summary>     ///     unbinds freezable context.     /// </summary>     /// <param name="resource">the resource freeze.</param>     private static void freeze(object resource)     {         freezable freezable = resource freezable;         if (freezable != null && !freezable.isfrozen)         {             freezable.freeze();         }     }      /// <summary>     ///     searches resource inside resourcedictionary.     /// </summary>     /// <param name="key">the original key.</param>     /// <param name="typekey">the key cast type.</param>     /// <param name="resourcekey">the key cast resourcekey.</param>     /// <param name="istraceenabled">tracing on/off.</param>     /// <param name="allowdeferredresourcereference">     ///     if flag true resource not inflated baml.     ///     instead return instance of deferreddictionaryreference     ///     can later used query resource     /// </param>     /// <param name="mustreturndeferredresourcereference">     ///     if method true method return     ///     deferredthemeresourcereference instance envelopes underlying resource.     /// </param>     /// <param name="cancache">whether callers can cache value.</param>     /// <returns></returns>     private static object finddictionaryresource(         object      key,         type        typekey,         resourcekey resourcekey,         bool        istraceenabled,         bool        allowdeferredresourcereference,         bool        mustreturndeferredresourcereference,         out bool    cancache)     {         // thread safety handled findresourceinternal. sure have locked _resourcecache.syncroot.          debug.assert(typekey != null || resourcekey != null, "typekey or resourcekey should non-null");          cancache = true;         object resource = null;         assembly assembly = (typekey != null) ? typekey.assembly : resourcekey.assembly;          if ((assembly == null) || ignoreassembly(assembly))         {             // without assembly, can't figure out dictionary at.             // also, ignore common assemblies know not contain resources.             return null;         }          resourcedictionaries dictionaries = ensuredictionaryslot(assembly);         resourcedictionary dictionary = dictionaries.loadthemeddictionary(istraceenabled);         if (dictionary != null)         {             resource = lookupresourceindictionary(dictionary, key, allowdeferredresourcereference, mustreturndeferredresourcereference, out cancache);         }          if (resource == null)         {             dictionary = dictionaries.loadgenericdictionary(istraceenabled);             if (dictionary != null)             {                 resource = lookupresourceindictionary(dictionary, key, allowdeferredresourcereference, mustreturndeferredresourcereference, out cancache);             }         }          if (resource != null)         {             // resources coming out of dictionary may need frozen             freeze(resource);         }          return resource;     } 

system.invalidoperationexception: freezable cannot frozen. @ system.windows.freezable.freeze() @ system.windows.systemresources.freeze(object resource) @ system.windows.systemresources.finddictionaryresource(object key, type typekey, resourcekey resourcekey, boolean istraceenabled, boolean allowdeferredresourcereference, boolean mustreturndeferredresourcereference, boolean& cancache) @ system.windows.systemresources.findresourceinternal(object key, boolean allowdeferredresourcereference, boolean mustreturndeferredresourcereference) @ system.windows.frameworkelement.findresourceinternal(frameworkelement fe, frameworkcontentelement fce, dependencyproperty dp, object resourcekey, object unlinkedparent, boolean allowdeferredresourcereference, boolean mustreturndeferredresourcereference, dependencyobject boundaryelement, boolean isimplicitstylelookup, object& source) @ system.windows.stylehelper.getchildvaluehelper(uncommonfield1 datafield, itemstructlist1& valuelookuplist, dependencyproperty dp, dependencyobject container, frameworkobject child, int32 childindex, boolean stylelookup, effectivevalueentry& entry, valuelookuptype& sourcetype, frameworkelementfactory templateroot) @ system.windows.stylehelper.getchildvalue(uncommonfield1 datafield, dependencyobject container, int32 childindex, frameworkobject child, dependencyproperty dp, frugalstructlist1& childrecordfromchildindex, effectivevalueentry& entry, valuelookuptype& sourcetype, frameworkelementfactory templateroot) @ system.windows.stylehelper.getvaluefromtemplatedparent(dependencyobject container, int32 childindex, frameworkobject child, dependencyproperty dp, frugalstructlist1& childrecordfromchildindex, frameworkelementfactory templateroot, effectivevalueentry& entry) @ system.windows.frameworkelement.getvaluefromtemplatedparent(dependencyproperty dp, effectivevalueentry& entry) @ system.windows.frameworkelement.getrawvalue(dependencyproperty dp, propertymetadata metadata, effectivevalueentry& entry) @ system.windows.frameworkelement.evaluatebasevaluecore(dependencyproperty dp, propertymetadata metadata, effectivevalueentry& newentry) @ system.windows.dependencyobject.evaluateeffectivevalue(entryindex entryindex, dependencyproperty dp, propertymetadata metadata, effectivevalueentry oldentry, effectivevalueentry newentry, operationtype operationtype) @ system.windows.dependencyobject.updateeffectivevalue(entryindex entryindex, dependencyproperty dp, propertymetadata metadata, effectivevalueentry oldentry, effectivevalueentry& newentry, boolean coercewithdeferredreference, boolean coercewithcurrentvalue, operationtype operationtype) @ system.windows.dependencyobject.invalidateproperty(dependencyproperty dp) @ system.windows.stylehelper.invalidateresourcedependentsforchild(dependencyobject container, dependencyobject child, int32 childindex, resourceschangeinfo info, frameworktemplate parenttemplate) @ system.windows.treewalkhelper.invalidatestyleandreferences(dependencyobject d, resourceschangeinfo info, boolean containstypeofkey) @ system.windows.treewalkhelper.onresourceschanged(dependencyobject d, resourceschangeinfo info, boolean raiseresourcechangedevent) @ system.windows.treewalkhelper.onresourceschangedcallback(dependencyobject d, resourceschangeinfo info) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walklogicalchildren(frameworkelement feparent, frameworkcontentelement fceparent, ienumerator logicalchildren) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walklogicalchildren(frameworkelement feparent, frameworkcontentelement fceparent, ienumerator logicalchildren) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walklogicalchildren(frameworkelement feparent, frameworkcontentelement fceparent, ienumerator logicalchildren) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walklogicalchildren(frameworkelement feparent, frameworkcontentelement fceparent, ienumerator logicalchildren) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walklogicalchildren(frameworkelement feparent, frameworkcontentelement fceparent, ienumerator logicalchildren) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker1._visitnode(dependencyobject d) @ system.windows.descendentswalker1.visitnode(frameworkelement fe) @ system.windows.descendentswalker1.visitnode(dependencyobject d) @ system.windows.descendentswalker1.walklogicalchildren(frameworkelement feparent, frameworkcontentelement fceparent, ienumerator logicalchildren) @ system.windows.descendentswalker1.walkframeworkelementlogicalthenvisualchildren(frameworkelement feparent, boolean haslogicalchildren) @ system.windows.descendentswalker1.iteratechildren(dependencyobject d) @ system.windows.descendentswalker`1.startwalk(dependencyobject startnode, boolean skipstartnode) @ system.windows.treewalkhelper.invalidateonresourceschange(frameworkelement fe, frameworkcontentelement fce, resourceschangeinfo info) @ system.windows.systemresources.invalidatetreeresources(object args) @ system.windows.threading.exceptionwrapper.internalrealcall(delegate callback, object args, int32 numargs) @ ms.internal.threading.exceptionfilterhelper.trycatchwhen(object source, delegate method, object args, int32 numargs, delegate catchhandler)