https://bugreports.qt.io/browse/QTBUG-139626
https://codereview.qt-project.org/c/qt/qtdeclarative/+/672607
--- a/src/qmlcompiler/qqmljscodegenerator.cpp
+++ b/src/qmlcompiler/qqmljscodegenerator.cpp
@@ -1441,4 +1441,15 @@
 }
 
+QString QQmlJSCodeGenerator::generateVariantMapLookup(
+        const QString &map, const int nameIndex)
+{
+    const QString mapLookup = map
+            + u"["_s + QQmlJSUtils::toLiteral(m_jsUnitGenerator->lookupName(nameIndex)) + u"]"_s;
+
+    return m_state.accumulatorVariableOut + u" = "_s
+            + conversion(m_typeResolver->varType(), m_state.accumulatorOut(), mapLookup)
+            + u";\n"_s;
+}
+
 void QQmlJSCodeGenerator::generate_GetLookupHelper(int index)
 {
@@ -1588,9 +1599,5 @@
         }
     } else if (accumulatorIn.isStoredIn(m_typeResolver->variantMapType())) {
-        QString mapLookup = m_state.accumulatorVariableIn + u"["_s
-                + QQmlJSUtils::toLiteral(m_jsUnitGenerator->lookupName(index)) + u"]"_s;
-        m_body += m_state.accumulatorVariableOut + u" = "_s;
-        m_body += conversion(m_typeResolver->varType(), m_state.accumulatorOut(), mapLookup);
-        m_body += u";\n"_s;
+        m_body += generateVariantMapLookup(m_state.accumulatorVariableIn, index);
     } else {
         if (m_state.isRegisterAffectedBySideEffects(Accumulator))
@@ -1602,4 +1609,11 @@
                         m_jsUnitGenerator->lookupName(index)));
 
+        if (scope.contains(m_typeResolver->variantMapType())) {
+            m_body += generateVariantMapLookup(
+                    u"(*static_cast<const QVariantMap *>("_s
+                            + inputContentPointer + u"))"_s, index);
+            return;
+        }
+
         const QString lookup = u"aotContext->getValueLookup("_s + indexString
                 + u", "_s + inputContentPointer
--- a/src/qmlcompiler/qqmljscodegenerator_p.h
+++ b/src/qmlcompiler/qqmljscodegenerator_p.h
@@ -360,4 +360,6 @@
             const QStringList &arguments, const QString &metaType, const QString &metaObject);
 
+    QString generateVariantMapLookup(const QString &map, const int nameIndex);
+
     QQmlJSRegisterContent originalType(QQmlJSRegisterContent tracked)
     {
--- a/tests/auto/qml/qmlcppcodegen/data/variantMapLookup.h
+++ b/tests/auto/qml/qmlcppcodegen/data/variantMapLookup.h
@@ -9,4 +9,5 @@
     QML_ELEMENT
     Q_PROPERTY(QVariantMap data READ data CONSTANT)
+    Q_PROPERTY(QList<QVariantMap> many READ many CONSTANT)
 
 public:
@@ -15,3 +16,10 @@
 private:
     QVariantMap data() const { return { { QStringLiteral("value"), 42 } }; }
+    QList<QVariantMap> many() const
+    {
+        const QVariantMap one = data();
+        return QList<QVariantMap>({one, one, one});
+    }
 };
+
+
--- a/tests/auto/qml/qmlcppcodegen/data/variantMapLookup.qml
+++ b/tests/auto/qml/qmlcppcodegen/data/variantMapLookup.qml
@@ -5,4 +5,5 @@
 Item {
     property int i: moo.data.value
+    property int j: moo.many[1].value
 
     VariantMapLookupFoo {
--- a/tests/auto/qml/qmlcppcodegen/tst_qmlcppcodegen.cpp
+++ b/tests/auto/qml/qmlcppcodegen/tst_qmlcppcodegen.cpp
@@ -5697,4 +5697,5 @@
     QVERIFY(!o.isNull());
     QCOMPARE(o->property("i"), 42);
+    QCOMPARE(o->property("j"), 42);
 }