diff --git a/src/Umbraco.Web.UI.Client/src/common/directives/components/content/umbtabbedcontent.directive.js b/src/Umbraco.Web.UI.Client/src/common/directives/components/content/umbtabbedcontent.directive.js
index 015255c577..651edf5bfd 100644
--- a/src/Umbraco.Web.UI.Client/src/common/directives/components/content/umbtabbedcontent.directive.js
+++ b/src/Umbraco.Web.UI.Client/src/common/directives/components/content/umbtabbedcontent.directive.js
@@ -22,14 +22,6 @@
             },
             link: function(scope) {
 
-                function onInit() {
-                    angular.forEach(scope.content.tabs, function (group) {
-                        group.open = true;
-                    });
-                }
-
-                onInit();
-
             },
             scope: {
                 content: "="
diff --git a/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.controller.js b/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.controller.js
index 6dcf1211c2..365cb03a5d 100644
--- a/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.controller.js
+++ b/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.controller.js
@@ -5,14 +5,6 @@
 
         var vm = this;
 
-        function onInit() {
-            angular.forEach($scope.content.tabs, function(group){
-                group.open = true;
-            });
-        }
-
-        onInit();
-
     }
 
     angular.module("umbraco").controller("Umbraco.Editors.Media.Apps.ContentController", MediaAppContentController);
diff --git a/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.html b/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.html
index 358dcef27d..f8bbf5ed54 100644
--- a/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.html
+++ b/src/Umbraco.Web.UI.Client/src/views/media/apps/content/content.html
@@ -1,5 +1,5 @@
 <div class="form-horizontal" ng-controller="Umbraco.Editors.Media.Apps.ContentController as vm">
-    <div class="umb-expansion-panel" data-element="group-{{group.alias}}" ng-repeat="group in content.tabs | filter: { hide : '!' + true }">
+    <div class="umb-expansion-panel" data-element="group-{{group.alias}}" ng-repeat="group in content.tabs | filter: { hide : '!' + true } track by group.label">
 
         <div class="umb-expansion-panel__header" ng-click="group.open = !group.open">
             <div>{{ group.label }}</div>
diff --git a/src/Umbraco.Web.UI.Client/src/views/member/edit.html b/src/Umbraco.Web.UI.Client/src/views/member/edit.html
index fb9d99a9eb..310559b4d4 100644
--- a/src/Umbraco.Web.UI.Client/src/views/member/edit.html
+++ b/src/Umbraco.Web.UI.Client/src/views/member/edit.html
@@ -18,7 +18,7 @@
 
          <umb-editor-container class="form-horizontal">
 
-            <div class="umb-expansion-panel" ng-repeat="group in content.tabs">
+            <div class="umb-expansion-panel" ng-repeat="group in content.tabs track by group.label">
 
                 <div class="umb-expansion-panel__header" ng-click="group.open = !group.open">
                     <div>{{ group.label }}</div>
diff --git a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/idwithguid/idwithguid.html b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/idwithguid/idwithguid.html
index a3d9970cd0..02179b7c71 100644
--- a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/idwithguid/idwithguid.html
+++ b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/idwithguid/idwithguid.html
@@ -1,4 +1,4 @@
-<div class="umb-editor umb-readonlyvalue umb-idwithguidvalue" ng-controller="Umbraco.PropertyEditors.IdWithGuidValueController">
+<div class="umb-property-editor umb-readonlyvalue" ng-controller="Umbraco.PropertyEditors.IdWithGuidValueController">
     <div>{{ displayid }}</div>
     <small>{{ displayguid }}</small>
 </div>
diff --git a/src/Umbraco.Web/Models/ContentEditing/Tab.cs b/src/Umbraco.Web/Models/ContentEditing/Tab.cs
index c83f293f08..758317606c 100644
--- a/src/Umbraco.Web/Models/ContentEditing/Tab.cs
+++ b/src/Umbraco.Web/Models/ContentEditing/Tab.cs
@@ -21,6 +21,12 @@ namespace Umbraco.Web.Models.ContentEditing
         [DataMember(Name = "alias")]
         public string Alias { get; set; }
 
+        /// <summary>
+        /// The expanded state of the tab
+        /// </summary>
+        [DataMember(Name = "open")]
+        public bool Expanded { get; set; } = true;
+
         [DataMember(Name = "properties")]
         public IEnumerable<T> Properties { get; set; }
     }
diff --git a/src/Umbraco.Web/Models/Mapping/MemberTabsAndPropertiesResolver.cs b/src/Umbraco.Web/Models/Mapping/MemberTabsAndPropertiesResolver.cs
index cf791957db..0e4b902196 100644
--- a/src/Umbraco.Web/Models/Mapping/MemberTabsAndPropertiesResolver.cs
+++ b/src/Umbraco.Web/Models/Mapping/MemberTabsAndPropertiesResolver.cs
@@ -119,7 +119,7 @@ namespace Umbraco.Web.Models.Mapping
             {
                 new ContentPropertyDisplay
                 {
-                    Alias = string.Format("{0}id", Constants.PropertyEditors.InternalGenericPropertiesPrefix),
+                    Alias = $"{Constants.PropertyEditors.InternalGenericPropertiesPrefix}id",
                     Label = _localizedTextService.Localize("general/id"),
                     Value = new List<string> {member.Id.ToString(), member.Key.ToString()},
                     View = "idwithguid"