3 files changed, 20 insertions, 3 deletions
diff --git a/src/core/qchangearbiter.cpp b/src/core/qchangearbiter.cpp
index e5745b017..3672777de 100644
--- a/src/core/qchangearbiter.cpp
+++ b/src/core/qchangearbiter.cpp
@@ -171,12 +171,21 @@ void QChangeArbiter::removeLockingChangeQueue(QChangeArbiter::QChangeQueue *queu
 
 void QChangeArbiter::syncChanges()
 {
-    const std::lock_guard<QRecursiveMutex> locker(m_mutex);;
-    for (QChangeArbiter::QChangeQueue *changeQueue : qAsConst(m_changeQueues))
+    const std::lock_guard<QRecursiveMutex> locker(m_mutex);
+
+    bool hasChanges = false;
+    for (QChangeArbiter::QChangeQueue *changeQueue : qAsConst(m_changeQueues)) {
+        hasChanges |= !changeQueue->empty();
         distributeQueueChanges(changeQueue);
+    }
 
-    for (QChangeQueue *changeQueue : qAsConst(m_lockingChangeQueues))
+    for (QChangeQueue *changeQueue : qAsConst(m_lockingChangeQueues)) {
+        hasChanges |= !changeQueue->empty();
         distributeQueueChanges(changeQueue);
+    }
+
+    if (hasChanges)
+        emit syncedChanges();
 }
 
 void QChangeArbiter::setScene(QScene *scene)
diff --git a/src/core/qchangearbiter_p.h b/src/core/qchangearbiter_p.h
index 483b46575..e32fe7da4 100644
--- a/src/core/qchangearbiter_p.h
+++ b/src/core/qchangearbiter_p.h
@@ -138,6 +138,7 @@ public:
 
 Q_SIGNALS:
     void receivedChange();
+    void syncedChanges();
 
 protected:
     typedef std::vector<QSceneChangePtr> QChangeQueue;
diff --git a/src/quick3d/imports/scene3d/scene3ditem.cpp b/src/quick3d/imports/scene3d/scene3ditem.cpp
index 586de9938..a720b8aa0 100644
--- a/src/quick3d/imports/scene3d/scene3ditem.cpp
+++ b/src/quick3d/imports/scene3d/scene3ditem.cpp
@@ -886,8 +886,15 @@ QSGNode *Scene3DItem::updatePaintNode(QSGNode *node, QQuickItem::UpdatePaintNode
         updateWindowSurface();
         managerNode->init();
         // Note: ChangeArbiter is only set after aspect was registered
+
+        // This allows Scene3DItem to know when it needs to re-render as a result of frontend nodes receiving a change.
         QObject::connect(renderAspectPriv->m_aspectManager->changeArbiter(), &Qt3DCore::QChangeArbiter::receivedChange,
                          this, [this] { m_dirty = true; }, Qt::DirectConnection);
+
+        // This allows Scene3DItem to know when it needs to re-render as a result of backend nodes receiving a change.
+        // For e.g. nodes being created/destroyed.
+        QObject::connect(renderAspectPriv->m_aspectManager->changeArbiter(), &Qt3DCore::QChangeArbiter::syncedChanges,
+                         this, [this] { m_dirty = true; }, Qt::QueuedConnection);
     }
 
     const bool usesFBO = m_compositingMode == FBO;