Crash when binding to new components that have spaces in their name and you attempt to access their bindings.
Steps to Reproduce
1. Create a new Level Sequence and open it in Sequencer
2. Drag and drop a Blueprint into Sequencer
3. Add a component to the Spawned blueprint and name it something with spaces
4. Click the + button to the right of the Blueprint to add a track
5. Choose the newly created component from the Component section
6. Right-click on the newly created track for that component
7. Move the mouse over the Binding Properties row at the top of the context menu
8. The editor crashes
LoginId:b20c283947c045e51d2b3aa8e693bec3
EpicAccountId:6520317819cc489da4b6332dabed05c3
Assertion failed: !FAsciiSet::HasAny(StringRepresentation, InvalidChars) [Link Removed] [Line: 59]
FSubObjectLocator::ToString resulted in an invalid character usage:
My Component With Spaces
^ ^ ^
UnrealEditor_Core!FDebug::CheckVerifyFailedImpl2() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:728]
UnrealEditor_UniversalObjectLocator!UE::UniversalObjectLocator::FFragmentType::ToString() [D:\build\++UE5\Sync\Engine\Source\Runtime\UniversalObjectLocator\Private\UniversalObjectLocatorFragmentType.cpp:55]
UnrealEditor_UniversalObjectLocator!FUniversalObjectLocator::ToString() [D:\build\++UE5\Sync\Engine\Source\Runtime\UniversalObjectLocator\Private\UniversalObjectLocator.cpp:394]
UnrealEditor_UniversalObjectLocator!FUniversalObjectLocator::ExportTextItem() [D:\build\++UE5\Sync\Engine\Source\Runtime\UniversalObjectLocator\Private\UniversalObjectLocator.cpp:672]
UnrealEditor_UniversalObjectLocator!UScriptStruct::TCppStructOps<FUniversalObjectLocator>::ExportTextItem() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\Class.h:1570]
UnrealEditor_CoreUObject!UScriptStruct::ExportText() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:3495]
UnrealEditor_CoreUObject!FStructProperty::ExportText_Internal() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\PropertyStruct.cpp:277]
UnrealEditor_CoreUObject!FProperty::ExportText_Direct() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Property.cpp:1088]
UnrealEditor_CoreUObject!UScriptStruct::ExportText() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:3522]
UnrealEditor_CoreUObject!FStructProperty::ExportText_Internal() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\PropertyStruct.cpp:277]
UnrealEditor_CoreUObject!FArrayProperty::ExportTextInnerItem() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\PropertyArray.cpp:954]
UnrealEditor_CoreUObject!FArrayProperty::ExportText_Internal() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\PropertyArray.cpp:929]
UnrealEditor_PropertyEditor!FPropertyNode::GetDefaultValueAsString() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyNode.cpp:2729]
UnrealEditor_PropertyEditor!FPropertyNode::GetDiffersFromDefault() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyNode.cpp:2563]
UnrealEditor_PropertyEditor!FPropertyNode::GetDiffersFromDefault() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyNode.cpp:2666]
UnrealEditor_PropertyEditor!FPropertyHandleBase::DiffersFromDefault() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyHandleImpl.cpp:2464]
UnrealEditor_PropertyEditor!FPropertyHandleBase::CanResetToDefault() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyHandleImpl.cpp:3721]
UnrealEditor_PropertyEditor!SDetailSingleItemRow::UpdateResetToDefault() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\SDetailSingleItemRow.cpp:294]
UnrealEditor_PropertyEditor!SDetailSingleItemRow::Construct() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\SDetailSingleItemRow.cpp:691]
UnrealEditor_PropertyEditor!TSlateDecl<SDetailSingleItemRow,RequiredArgs::T4RequiredArgs<FDetailLayoutCustomization * __ptr64 && __ptr64,bool && __ptr64,TSharedRef<FDetailItemNode,1> && __ptr64,TSharedRef<STableViewBase,1> const & __ptr64> >::operator<<=() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Public\Widgets\DeclarativeSyntaxSupport.h:976]
UnrealEditor_PropertyEditor!FDetailItemNode::GenerateWidgetForTableView() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\DetailItemNode.cpp:278]
UnrealEditor_PropertyEditor!SDetailsViewBase::OnGenerateRowForDetailTree() [D:\build\++UE5\Sync\Engine\Source\Editor\PropertyEditor\Private\SDetailsViewBase.cpp:65]
UnrealEditor_PropertyEditor!V::TBaseSPMethodDelegateInstance::Execute() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:292]
UnrealEditor_PropertyEditor!STreeView<TSharedRef<FDetailTreeNode,1> >::GenerateNewWidget() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views\STreeView.h:836]
UnrealEditor_PropertyEditor!SListView<TSharedRef<FDetailTreeNode,1> >::GenerateWidgetForItem() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views\SListView.h:1528]
UnrealEditor_PropertyEditor!SListView<TSharedRef<FDetailTreeNode,1> >::ReGenerateItems() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views\SListView.h:1428]
UnrealEditor_PropertyEditor!STreeView<TSharedRef<FDetailTreeNode,1> >::ReGenerateItems() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views\STreeView.h:1044]
UnrealEditor_Slate!STableViewBase::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Views\STableViewBase.cpp:322]
UnrealEditor_PropertyEditor!STreeView<TSharedRef<FDetailTreeNode,1> >::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views\STreeView.h:631]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1445]
UnrealEditor_SlateCore!SCompoundWidget::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SCompoundWidget.cpp:46]
UnrealEditor_Slate!SBorder::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Layout\SBorder.cpp:131]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SOverlay::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SOverlay.cpp:209]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SCompoundWidget::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SCompoundWidget.cpp:46]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SCompoundWidget::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SCompoundWidget.cpp:46]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SOverlay::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SOverlay.cpp:209]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SCompoundWidget::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SCompoundWidget.cpp:46]
UnrealEditor_Slate!SScrollBox::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Layout\SScrollBox.cpp:1233]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SPanel::PaintArrangedChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:34]
UnrealEditor_SlateCore!SPanel::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SPanel.cpp:15]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SCompoundWidget::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SCompoundWidget.cpp:46]
UnrealEditor_Slate!SBorder::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Layout\SBorder.cpp:131]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!SCompoundWidget::OnPaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SCompoundWidget.cpp:46]
UnrealEditor_SlateCore!SWidget::Paint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWidget.cpp:1579]
UnrealEditor_SlateCore!FSlateWindowElementList::FDeferredPaint::ExecutePaint() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Rendering\DrawElements.cpp:130]
UnrealEditor_SlateCore!FSlateWindowElementList::PaintDeferred() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Rendering\DrawElements.cpp:155]
UnrealEditor_SlateCore!SWindow::PaintWindow() [D:\build\++UE5\Sync\Engine\Source\Runtime\SlateCore\Private\Widgets\SWindow.cpp:2155]
UnrealEditor_Slate!FSlateApplication::DrawWindowAndChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1177]
UnrealEditor_Slate!FSlateApplication::DrawWindowAndChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1229]
UnrealEditor_Slate!FSlateApplication::DrawWindowAndChildren() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1229]
UnrealEditor_Slate!FSlateApplication::PrivateDrawWindows() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1421]
UnrealEditor_Slate!FSlateApplication::DrawWindows() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1121]
UnrealEditor_Slate!FSlateApplication::TickAndDrawWidgets() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1726]
UnrealEditor_Slate!FSlateApplication::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:1576]
UnrealEditor!FEngineLoop::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5751]
UnrealEditor!GuardedMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:187]
UnrealEditor!GuardedMainWrapper() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:128]
UnrealEditor!LaunchWindowsStartup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:282]
UnrealEditor!WinMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:339]
UnrealEditor!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-352954 in the post.
| 0 |
| Component | UE - Anim - Sequencer |
|---|---|
| Affects Versions | 5.6 |
| Created | Nov 7, 2025 |
|---|---|
| Updated | Nov 7, 2025 |