diff --git a/src/plugins/platforms/wayland/qwaylanddatadevice.cpp b/src/plugins/platforms/wayland/qwaylanddatadevice.cpp
index 9dbef8d5bf0..e7afc3ca8d8 100644
--- a/src/plugins/platforms/wayland/qwaylanddatadevice.cpp
+++ b/src/plugins/platforms/wayland/qwaylanddatadevice.cpp
@@ -113,7 +113,10 @@ void QWaylandDataDevice::startDrag(QMimeData *mimeData, QWaylandWindow *icon)
     if (!origin)
         origin = seat->touchFocus();
 
-    start_drag(m_dragSource->object(), origin->wlSurface(), icon->wlSurface(), m_display->currentInputDevice()->serial());
+    if (origin)
+        start_drag(m_dragSource->object(), origin->wlSurface(), icon->wlSurface(), m_display->currentInputDevice()->serial());
+    else
+        qCDebug(lcQpaWayland) << "Couldn't start a drag because the origin window could not be found.";
 }
 
 void QWaylandDataDevice::cancelDrag()
diff --git a/src/plugins/platforms/wayland/qwaylandinputdevice.cpp b/src/plugins/platforms/wayland/qwaylandinputdevice.cpp
index 6ebc3bed748..19e36ccba63 100644
--- a/src/plugins/platforms/wayland/qwaylandinputdevice.cpp
+++ b/src/plugins/platforms/wayland/qwaylandinputdevice.cpp
@@ -279,6 +279,10 @@ void QWaylandInputDevice::Pointer::updateCursorTheme()
     int pixelSize = cursorSize() * scale;
     auto *display = seat()->mQDisplay;
     mCursor.theme = display->loadCursorTheme(cursorThemeName(), pixelSize);
+
+    if (!mCursor.theme)
+        return; // A warning has already been printed in loadCursorTheme
+
     if (auto *arrow = mCursor.theme->cursorImage(Qt::ArrowCursor)) {
         int arrowPixelSize = qMax(arrow->width, arrow->height); // Not all cursor themes are square
         while (scale > 1 && arrowPixelSize / scale < cursorSize())
@@ -317,6 +321,9 @@ void QWaylandInputDevice::Pointer::updateCursor()
     if (!mCursor.theme || idealCursorScale() != mCursor.themeBufferScale)
         updateCursorTheme();
 
+    if (!mCursor.theme)
+        return;
+
     // Set from shape using theme
     uint time = seat()->mCursor.animationTimer.elapsed();
     if (struct ::wl_cursor_image *image = mCursor.theme->cursorImage(shape, time)) {