diff --git a/utils/themeeditor/graphics/rbviewport.cpp b/utils/themeeditor/graphics/rbviewport.cpp
index a2e7bf49d3..b620e1b554 100644
--- a/utils/themeeditor/graphics/rbviewport.cpp
+++ b/utils/themeeditor/graphics/rbviewport.cpp
@@ -115,9 +115,9 @@ RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
 
         setPos(x, y);
         size = QRectF(0, 0, w, h);
-        debug = info.device()->data("showviewports").toBool();
     }
 
+    debug = info.device()->data("showviewports").toBool();
     lineHeight = font->lineHeight();
 }
 
diff --git a/utils/themeeditor/gui/skinviewer.ui b/utils/themeeditor/gui/skinviewer.ui
index d1116888b9..333eeefba5 100644
--- a/utils/themeeditor/gui/skinviewer.ui
+++ b/utils/themeeditor/gui/skinviewer.ui
@@ -15,7 +15,14 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <widget class="QGraphicsView" name="viewer"/>
+    <widget class="QGraphicsView" name="viewer">
+     <property name="cacheMode">
+      <set>QGraphicsView::CacheNone</set>
+     </property>
+     <property name="viewportUpdateMode">
+      <enum>QGraphicsView::FullViewportUpdate</enum>
+     </property>
+    </widget>
    </item>
    <item>
     <layout class="QHBoxLayout" name="horizontalLayout">