diff --git a/src/widgets/accessible/complexwidgets.cpp b/src/widgets/accessible/complexwidgets.cpp
index 77bf8504fa3..9c09b9fc9ff 100644
--- a/src/widgets/accessible/complexwidgets.cpp
+++ b/src/widgets/accessible/complexwidgets.cpp
@@ -441,7 +441,7 @@ QAccessible::State QAccessibleComboBox::state() const
 
     if (QComboBox *cBox = comboBox()) {
         s.expandable = true;
-        s.expanded = isValid() && cBox->view()->isVisible();
+        s.expanded = isValid() && cBox->view() && cBox->view()->isVisible();
         s.editable = cBox->isEditable();
     }
     return s;
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index 5899568b8a2..00c23856280 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -1472,8 +1472,14 @@ QComboBox::~QComboBox()
         ; // objects can't throw in destructor
     }
 
-    // Dispose of container before QComboBox goes away
-    delete d->container;
+    // Dispose of container before QComboBox goes away. Close explicitly so that
+    // update cycles back into the combobox (e.g. from accessibility when the
+    // active window changes) are completed first.
+    if (d->container) {
+        d->container->close();
+        delete d->container;
+        d->container = nullptr;
+    }
 }
 
 /*!