diff --git a/applets/systemtray/package/contents/ui/items/ItemLoader.qml b/applets/systemtray/package/contents/ui/items/ItemLoader.qml
--- a/applets/systemtray/package/contents/ui/items/ItemLoader.qml
+++ b/applets/systemtray/package/contents/ui/items/ItemLoader.qml
@@ -30,6 +30,7 @@
         } else if (model.itemType === "StatusNotifier") {
             return "StatusNotifierItem.qml"
         }
+        console.warn("ItemLoader: Illegal State! Cannot determine source!")
         return ""
     }
 }
diff --git a/applets/systemtray/package/contents/ui/main.qml b/applets/systemtray/package/contents/ui/main.qml
--- a/applets/systemtray/package/contents/ui/main.qml
+++ b/applets/systemtray/package/contents/ui/main.qml
@@ -88,8 +88,8 @@
     Connections {
         target: plasmoid.configuration
 
-        function onExtraItemsChanged(extraItems) {
-            plasmoid.nativeInterface.allowedPlasmoids = extraItems
+        function onExtraItemsChanged() {
+            plasmoid.nativeInterface.allowedPlasmoids = plasmoid.configuration.extraItems
         }
     }
 
diff --git a/applets/systemtray/systemtraymodel.cpp b/applets/systemtray/systemtraymodel.cpp
--- a/applets/systemtray/systemtraymodel.cpp
+++ b/applets/systemtray/systemtraymodel.cpp
@@ -206,15 +206,17 @@
     });
 
     dataItem->setData(pluginMetaData.pluginId(), static_cast<int>(BaseModel::BaseRole::ItemId));
-    dataItem->setData(true, static_cast<int>(BaseModel::BaseRole::CanRender));
     dataItem->setData(plasmoidCategoryForMetadata(pluginMetaData), static_cast<int>(BaseModel::BaseRole::Category));
     dataItem->setData(applet->status(), static_cast<int>(BaseModel::BaseRole::Status));
     connect(applet, &Plasma::Applet::statusChanged, this, [dataItem] (Plasma::Types::ItemStatus status) {
         dataItem->setData(status, static_cast<int>(BaseModel::BaseRole::Status));
     });
 
     dataItem->setData(applet->property("_plasma_graphicObject"), static_cast<int>(Role::Applet));
     dataItem->setData(true, static_cast<int>(Role::HasApplet));
+
+    // CanRender has to be the last one
+    dataItem->setData(true, static_cast<int>(BaseModel::BaseRole::CanRender));
 }
 
 void PlasmoidModel::removeApplet(Plasma::Applet *applet)