Effect maker crashes at launch

When trying to launch QQEffectMaker.exe it does not open but crashes right away. This happens if I try to launch it by double clicking .qep file in DS or just running it from DS_install_folder\Tools\QtDesignStudio\qt6_design_studio_reduced_version\bin

• output

  Exception thrown: read access violation.
  **typeRef** was nullptr.
  

• qqmlpropertycachecreator_p.h

  345template <typename ObjectContainer>
  346inline QQmlPropertyCache::ConstPtr QQmlPropertyCacheCreator<ObjectContainer>::propertyCacheForObject(const CompiledObject *obj, const QQmlBindingInstantiationContext 347&context, QQmlError *error) const
  348{
  349    if (context.instantiatingProperty) {
  350        return context.instantiatingPropertyCache();
  351    } else if (obj->inheritedTypeNameIndex != 0) {
  352        auto *typeRef = objectContainer->resolvedType(obj->inheritedTypeNameIndex);
  353        Q_ASSERT(typeRef);
  354
  355        if (typeRef->isFullyDynamicType()) {
  

• trace

  >	Qt6Qml.dll!QQmlPropertyCacheCreator<QQmlTypeCompiler>::propertyCacheForObject(const QmlIR::Object * obj, const QQmlBindingInstantiationContext & context, QQmlError * error) Line 355	C++
   	Qt6Qml.dll!QQmlPropertyCacheCreator<QQmlTypeCompiler>::buildMetaObjectRecursively(int objectIndex, const QQmlBindingInstantiationContext & context, QQmlPropertyCacheCreator<QQmlTypeCompiler>::VMEMetaObjectIsRequired isVMERequired) Line 296	C++
   	[Inline Frame] Qt6Qml.dll!QQmlPropertyCacheCreator<QQmlTypeCompiler>::buildMetaObjectsIncrementally() Line 222	C++
   	Qt6Qml.dll!QQmlTypeCompiler::compile() Line 58	C++
   	Qt6Qml.dll!QQmlTypeData::compile(const QQmlRefPointer<QQmlTypeNameCache> & typeNameCache, QV4::ResolvedTypeReferenceMap * resolvedTypeCache, const std::function<QByteArray __cdecl(void)> & dependencyHasher) Line 750	C++
   	Qt6Qml.dll!QQmlTypeData::done() Line 410	C++
   	Qt6Qml.dll!QQmlDataBlob::tryDone() Line 488	C++
   	Qt6Qml.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QQmlDataBlob::SourceCodeData & d) Line 420	C++
   	Qt6Qml.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QString & fileName) Line 399	C++
   	Qt6Qml.dll!QQmlTypeLoader::loadThread(QQmlDataBlob * blob) Line 263	C++
   	[Inline Frame] Qt6Qml.dll!PlainLoader::loadThread(QQmlTypeLoader *) Line 108	C++
   	[Inline Frame] Qt6Qml.dll!QQmlTypeLoader::doLoad(const PlainLoader &) Line 167	C++
   	Qt6Qml.dll!QQmlTypeLoader::load(QQmlDataBlob * blob, QQmlTypeLoader::Mode mode) Line 199	C++
   	Qt6Qml.dll!QQmlTypeLoader::getType(const QUrl & unNormalizedUrl, QQmlTypeLoader::Mode mode) Line 916	C++
   	Qt6Qml.dll!QQmlTypeData::resolveTypes() Line 845	C++
   	Qt6Qml.dll!QQmlTypeData::allDependenciesDone() Line 721	C++
   	Qt6Qml.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QQmlDataBlob::SourceCodeData & d) Line 414	C++
   	Qt6Qml.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QString & fileName) Line 399	C++
   	Qt6Qml.dll!QQmlTypeLoader::loadThread(QQmlDataBlob * blob) Line 263	C++
   	[Inline Frame] Qt6Qml.dll!PlainLoader::loadThread(QQmlTypeLoader *) Line 108	C++
  

• when attaching a debugger you will see these locals

  this->typeClassName = "BlurItem"
  objectContainer->document=
  // Copyright (C) 2022 The Qt Company Ltd.
  // SPDX-License-Identifier: BSD-3-Clause
  
  import QtQuick
  
  Item {
      id: rootItem
  
      property var sourceProxy: source.sourceItem === undefined ? source : source.sourceItem
      property alias blurSrc1: blurredItemSource1
      property alias blurSrc2: blurredItemSource2
      property alias blurSrc3: blurredItemSource3
      property alias blurSrc4: blurredItemSource4
      property alias blurSrc5: blurredItemSource5
      property alias blurSrc6: blurredItemSource6
  
      component BlurItem : ShaderEffect {
          property vector2d offset: Qt.vector2d((1.0 + rootItem.blurMultiplier) / width,
                                                (1.0 + rootItem.blurMultiplier) / height)
          visible: false
          smooth: true
          vertexShader: "bluritems.vert.qsb"
          fragmentShader: "bluritems.frag.qsb"
      }
  
      QtObject {
          id: priv
          property bool useBlurItem1: true
          property bool useBlurItem2: true
          property bool useBlurItem3: rootItem.blurMax > 2
          property bool useBlurItem4: rootItem.blurMax > 8
          property bool useBlurItem5: rootItem.blurMax > 16
          property bool useBlurItem6: rootItem.blurMax > 32
      }
      ShaderEffectSource {
          id: blurredItemSource1
          width: Math.ceil(rootItem.width / 64) * 64
          height: Math.ceil(rootItem.height / 64) * 64
          sourceItem: priv.useBlurItem1 ? rootItem.sourceProxy : null
          hideSource: rootItem.visible
          visible: false
          smooth: true
      }
  
      BlurItem {
          id: blurredItem1
          property var source: blurredItemSource1
          anchors.fill: blurredItemSource2
      }
  
      ShaderEffectSource {
          id: blurredItemSource2
          width: blurredItemSource1.width / 2
          height: blurredItemSource1.height / 2
          sourceItem: priv.useBlurItem2 ? blurredItem1 : null
          hideSource: rootItem.visible
          visible: false
          smooth: true
      }
  
      BlurItem {
          id: blurredItem2
          property var source: blurredItemSource2
          anchors.fill: blurredItemSource3
      }
  
      ShaderEffectSource {
          id: blurredItemSource3
          width: blurredItemSource2.width / 2
          height: blurredItemSource2.height / 2
          sourceItem: priv.useBlurItem3 ? blurredItem2 : null
          hideSource: rootItem.visible
          visible: false
          smooth: true
      }
  
      BlurItem {
          id: blurredItem3
          property var source: blurredItemSource3
          anchors.fill: blurredItemSource4
      }
  
      ShaderEffectSource {
          id: blurredItemSource4
          width: blurredItemSource3.width / 2
          height: blurredItemSource3.height / 2
          sourceItem: priv.useBlurItem4 ? blurredItem3 : null
          hideSource: rootItem.visible
          visible: false
          smooth: true
      }
  
      BlurItem {
          id: blurredItem4
          property var source: blurredItemSource4
          anchors.fill: blurredItemSource5
      }
  
      ShaderEffectSource {
          id: blurredItemSource5
          width: blurredItemSource4.width / 2
          height: blurredItemSource4.height / 2
          sourceItem: priv.useBlurItem5 ? blurredItem4 : null
          hideSource: rootItem.visible
          visible: false
          smooth: true
      }
  
      BlurItem {
          id: blurredItem5
          property var source: blurredItemSource5
          anchors.fill: blurredItemSource6
      }
  
      ShaderEffectSource {
          id: blurredItemSource6
          width: blurredItemSource5.width / 2
          height: blurredItemSource5.height / 2
          sourceItem: priv.useBlurItem6 ? blurredItem5 : null
          hideSource: rootItem.visible
          visible: false
          smooth: true
      }
  }