diff --git a/src/private/multisplitter/Item.cpp b/src/private/multisplitter/Item.cpp
index 60c8ea47..dbe84322 100644
--- a/src/private/multisplitter/Item.cpp
+++ b/src/private/multisplitter/Item.cpp
@@ -218,15 +218,23 @@ int Item::pos(Qt::Orientation o) const
 void Item::insertItem(Item *item, Location loc, SizingOption sizingOption)
 {
     Q_ASSERT(item != this);
-    const bool locIsSide1 = locationIsSide1(loc);
-
     if (sizingOption == SizingOption::Calculate)
         item->setGeometry(m_parent->suggestedDropRect(item->minSize(), this, loc));
 
     if (m_parent->hasOrientationFor(loc)) {
-        int indexInParent = m_parent->indexOfChild(this);
+        const bool locIsSide1 = locationIsSide1(loc);
+        int indexInParent = m_parent->indexOfVisibleChild(this);
         if (!locIsSide1)
             indexInParent++;
+
+        const Qt::Orientation orientation = orientationForLocation(loc);
+        if (orientation != m_parent->orientation()) {
+            Q_ASSERT(m_parent->visibleChildren().size() == 1);
+            // This is the case where the container only has one item, so it's both vertical and horizontal
+            // Now its orientation gets defined
+            m_parent->m_orientation = orientation;
+        }
+
         m_parent->insertItem(item, indexInParent);
     } else {
         ItemContainer *container = m_parent->convertChildToContainer(this);
diff --git a/src/private/multisplitter/tests/tst_multisplitter.cpp b/src/private/multisplitter/tests/tst_multisplitter.cpp
index 8717eb71..39bf62e1 100644
--- a/src/private/multisplitter/tests/tst_multisplitter.cpp
+++ b/src/private/multisplitter/tests/tst_multisplitter.cpp
@@ -53,6 +53,8 @@ private Q_SLOTS:
     void tst_createRoot();
     void tst_insertOne();
     void tst_insertThreeSideBySide();
+    void tst_insertTwoHorizontal();
+    void tst_insertTwoVertical();
     void tst_insertOnWidgetItem1();
     void tst_insertOnWidgetItem2();
     void tst_insertOnWidgetItem1DifferentOrientation();
@@ -114,6 +116,27 @@ void TestMultiSplitter::tst_insertThreeSideBySide()
     QCOMPARE(root->numChildren(), 3);
 }
 
+void TestMultiSplitter::tst_insertTwoHorizontal()
+{
+    auto root = createRoot();
+    auto item1 = createItem("1");
+    auto item2 = createItem("2");
+    root->insertItem(item1, Location_OnLeft);
+    item1->insertItem(item2, Location_OnRight);
+    root->dumpLayout();
+    QVERIFY(root->checkSanity());
+}
+
+void TestMultiSplitter::tst_insertTwoVertical()
+{
+    auto root = createRoot();
+    auto item1 = createItem("1");
+    auto item2 = createItem("2");
+    root->insertItem(item1, Location_OnTop);
+    item1->insertItem(item2, Location_OnBottom);
+    QVERIFY(root->checkSanity());
+}
+
 void TestMultiSplitter::tst_insertOnWidgetItem1()
 {
     // We insert into a widget item instead of in a container. It will insert in the container still
@@ -643,7 +666,6 @@ void TestMultiSplitter::tst_suggestedRect()
     QCOMPARE(topRect.topRight(), item2->geometry().topRight());
     QCOMPARE(bottomRect.bottomLeft(), item2->geometry().bottomLeft());
     QCOMPARE(bottomRect.bottomRight(), item2->geometry().bottomRight());
-
 }
 
 QTEST_MAIN(TestMultiSplitter)