Unreal Engine Issues

UE-44450

[CrashReport] Crash in UViewportWorldInteraction::FindTransformGizmoAlignPoint

[CrashReport] Crash in UViewportWorldInteraction::FindTransformGizmoAlignPoint

Description

This is an early trending crash coming out of the 4.16 Preview. Users have not provided any additional information about this crash.

This was also experienced internally by Alex.P [Link Removed]

Last Editor Activity:
Layout="Sequencer" Label="Sequencer" Content=SNullWidgetContent

Source Context:

1076       #if WITH_EDITOR
 1077       		FCoreUObjectDelegates::BroadcastOnObjectModified(this);
 1078       #endif
 1079       	}
 1080       
 1081       	return bSavedToTransactionBuffer;
 1082       }
 1083       
 1084       bool UObject::IsSelected() const
 1085       {
 1086 ***** 	return !IsPendingKill() && GSelectedAnnotation.Get(this);
 1087       }
Steps to Reproduce
  1. Create and open a new VR Template project in 4.16
  2. Open either one of the Maps in the template
    • File> Open Level > Virtual Reality BP> Maps
    • Either MotionController or HMD Locomotion repros this
  3. Enter VR Mode
  4. Enable Smart Snapping
  5. Select one of the giant white cubes in the level
  6. Transform along the X-Axis

Expected Result: Smooth snapping and transforming with no errors

Outcome: Crash

Callstack
Access violation - code c0000005 (first/second chance not available)

UE4Editor_CoreUObject!UObject::IsSelected() [obj.cpp:1087]
UE4Editor_ViewportInteraction!UViewportWorldInteraction::FindTransformGizmoAlignPoint() [viewportworldinteraction.cpp:3382]
UE4Editor_ViewportInteraction!UViewportWorldInteraction::SnapLocation() [viewportworldinteraction.cpp:3615]
UE4Editor_ViewportInteraction!UViewportWorldInteraction::UpdateDragging() [viewportworldinteraction.cpp:1946]
UE4Editor_ViewportInteraction!UViewportWorldInteraction::InteractionTick() [viewportworldinteraction.cpp:1166]
UE4Editor_ViewportInteraction!UViewportWorldInteraction::Tick() [viewportworldinteraction.cpp:459]
UE4Editor_UnrealEd!UEditorWorldExtensionCollection::Tick() [editorworldextension.cpp:290]
UE4Editor_UnrealEd!UEditorWorldExtensionManager::Tick() [editorworldextension.cpp:495]
UE4Editor_UnrealEd!UEditorEngine::Tick() [editorengine.cpp:1717]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [unrealedengine.cpp:386]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3119]
UE4Editor!GuardedMain() [launch.cpp:166]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:264]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Fixed
ComponentUE - Editor - Workflow Systems
Affects Versions4.16
Target Fix4.16
Fix Commit3413401
Main Commit3427032
Release Commit3413401
CreatedApr 27, 2017
ResolvedApr 28, 2017
UpdatedJan 20, 2024
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