Add-in Submenus using AddCommandItem2()

I'm creating menu groups and sub groups.  I add two sub-menus within a group and it doesn't work correctly.  The second sub-menu has the same title as the first, even though the code clearly says otherwise.  Any suggestions how to fix this?

Code:

            mCommandGroup = mCommandManager.CreateCommandGroup(mCommandGroupId++, "Bulk Operations", "", "", -1);

            mCommandGroup.Activate();   // activate the top menu

            mCommandSubGroupAssy = mCommandManager.CreateCommandGroup(mCommandGroupId++, "Bulk Operations\\Assemblies", "", "", -1);   // commands for assemblies

            mCommandSubGroupPart = mCommandManager.CreateCommandGroup(mCommandGroupId++, "Bulk Operations\\Parts", "", "", -1);    // commands for parts

            mCommandSubGroupDwg = mCommandManager.CreateCommandGroup(mCommandGroupId++, "Bulk Operations\\Drawings", "", "", -1); // commands for drawings

            // set the group to have both a menu and a toolbar

            // you could easily add new parameters and ui items to allow

            // the user to dynamically alter these settings

            mCommandGroup.HasMenu = true;

            mCommandGroup.HasToolbar = true;

            mCommandGroup.ShowInDocumentType = documentTypes;

            // shows up only in assemblies

            documentTypes = (int)swDocTemplateTypes_e.swDocTemplateTypeNONE;

            documentTypes |= (int)swDocTemplateTypes_e.swDocTemplateTypeASSEMBLY;

            mCommandSubGroupAssy.HasMenu = true;

            mCommandSubGroupAssy.HasToolbar = true;

            mCommandSubGroupAssy.ShowInDocumentType = documentTypes;

            // shows up only in parts

            documentTypes = (int)swDocTemplateTypes_e.swDocTemplateTypeNONE;

            documentTypes |= (int)swDocTemplateTypes_e.swDocTemplateTypePART;

            mCommandSubGroupPart.HasMenu = true;

            mCommandSubGroupPart.HasToolbar = true;

            mCommandSubGroupPart.ShowInDocumentType = documentTypes;

            // shows up only in drawings

            documentTypes = (int)swDocTemplateTypes_e.swDocTemplateTypeNONE;

            documentTypes |= (int)swDocTemplateTypes_e.swDocTemplateTypeDRAWING;

            mCommandSubGroupDwg.HasMenu = true;

            mCommandSubGroupDwg.HasToolbar = true;

            mCommandSubGroupDwg.ShowInDocumentType = documentTypes;

            // Create the menus

            int itemType = (int)(swCommandItemType_e.swMenuItem | swCommandItemType_e.swToolbarItem);

            int menuID = 1001;

            mCommandSubGroupAssy.AddCommandItem2("Save all drawings to PDF",    0, "", "Save all part drawings in this assembly to PDF",    0, "SaveAllPDF_Clicked", "SaveAllPDF_Enable", menuID++, itemType);

            mCommandSubGroupAssy.AddCommandItem2("Freeze all parts",            1, "", "Freeze all parts in this assembly",                 0, "FreezeAll_Clicked", "FreezeAll_Enable", menuID++, itemType);

            mCommandSubGroupAssy.Activate();    // activate the assembly level menu

            mCommandSubGroupPart.AddCommandItem2("Freeze Part",                 0, "", "Freeze part",                                       0, "Freeze_Clicked", "Freeze_Enable", menuID++, itemType);

            mCommandSubGroupPart.Activate();    // activate the part level menu

            mCommandSubGroupDwg.AddCommandItem2("Save drawing to PDF",          0, "", "Save drawing to PDF",                               0, "SavePDF_Clicked", "SavePDF_Enable", menuID++, itemType);

            mCommandSubGroupDwg.Activate(); // activate the drawing level menu

SolidworksApi macros