diff --git a/shell/panelview.h b/shell/panelview.h
--- a/shell/panelview.h
+++ b/shell/panelview.h
@@ -209,6 +209,7 @@
     int m_contentLength;
     int m_distance;
     int m_thickness;
+    bool m_initCompleted;
     Qt::Alignment m_alignment;
     QPointer<PlasmaQuick::ConfigView> m_panelConfigView;
     ShellCorona *m_corona;
diff --git a/shell/panelview.cpp b/shell/panelview.cpp
--- a/shell/panelview.cpp
+++ b/shell/panelview.cpp
@@ -62,7 +62,8 @@
        m_corona(corona),
        m_visibilityMode(NormalPanel),
        m_background(0),
-       m_shellSurface(nullptr)
+       m_shellSurface(nullptr),
+       m_initCompleted(false)
 {
     if (targetScreen) {
         setPosition(targetScreen->geometry().center());
@@ -356,6 +357,10 @@
         return;
     }
 
+    if (!m_initCompleted) {
+        return;
+    }
+
     KWindowEffects::SlideFromLocation slideLocation = KWindowEffects::NoEdge;
 
     switch (containment()->location()) {
@@ -461,6 +466,10 @@
 
 void PanelView::resizePanel()
 {
+    if (!m_initCompleted) {
+        return;
+    }
+
     QSize targetSize;
     QSize targetMinSize;
     QSize targetMaxSize;
@@ -520,6 +529,7 @@
     m_minLength = qBound<int>(MINSIZE, config().readEntry<int>("minLength", side), maxSize);
 
     setVisibilityMode((VisibilityMode)config().readEntry<int>("panelVisibility", (int)NormalPanel));
+    m_initCompleted = true;
     resizePanel();
     positionPanel();