Unreal Engine Issues
Unreal Engine Issues
Crash when moving actor on viewport with HierarchicalInstancedStaticMeshComponent.
UE - Gameplay - Components - Aug 28, 2017Create ActorBP has StaticMesh is not assigned to HierarchicalInstancedStaticMeshComponent. Place this actor on the level, and bind the StaticMesh from the Detail tab and add the appropriate Instance ...
DiffuseIndirect_Lumen_3 parameter missing and causing crash with Screen Space reflections and Lumen Async Compute
UE - Graphics Features - Lumen - May 3, 2025When the Reflection Method is set to Screen Space and Lumen reflections async compute is enabled Unreal will crash because DiffuseIndirect_Lumen_3 parameter missing, due to how DenoiserOutputs are o ...
Crash when garbage collecting a deleted AudioVolume
UE - Audio - Sep 28, 2016It appears that the actor isn't properly destroyed until the exit, despite being deleted. By that time, the root component (the brush) has already been destroyed, thus when it's accessed in AAudioVo ...
Crash saving blueprint with a Get Float Attribute node and the attribute pin is set inline
UE - Foundation - Core - May 5, 2020REGRESSION: Does not occur in 4.24 Crash occurs when saving a blueprint that is using a Get Float Attribute node and the Attribute pin is set inline. Does not occur if the pin is connected. ...
Crash occurs when blueprint breakpoint is placed after a Draw Debug String node
UE - Gameplay - Blueprint - Aug 22, 2023This is not a regression. Tested in //UE5/Release-5.2 CL 26001984 The editor crashes when playing in editor on a level that has a break point placed on a ticking draw debug string node that is prec ...
Crash duplicating or deleting any component inside of Actor BP if lights or triggers are present
UE - Gameplay - Blueprint Editor - Apr 25, 2017When duplicating or deleting a component whilst a point light is also a component within an Actor BP, the editor crashes. See callstack for info. This is a regression. Working: 4.15.2 Broken: 4.16 ...
Crash after enabling USD plugin in binary editor
UE - Foundation - Cpp Tools - Plugin System - Apr 27, 2017This crash occurs when enabling the USD plugin on the binary editor ...
SetWorldOrigin in console command crashes editor
UE - Gameplay - May 6, 2016Using the SetWorldOrigin console command crashes the editor. Frequency 3/3 Crashreporter N/A Regression (yes) issue (does not) occur in 4.11.2 ...
"Assertion Failed" crash while Force Deleting the FirstPerson folder within FirstPersonTemplate project
UE - Gameplay - Oct 28, 2016The Editor crashes while Force Deleting the FirstPerson folder within a FirstPersonTemplate project. This behavior is consistent between Blueprint / Code versions of FirstPersonTemplate projects. ...
Importing .glb file results in crash
UE - Editor - Content Pipeline - Import and Export - Nov 13, 2019When importing a .glb file from Blender, the editor crashes. The user has been able to import other .glb files, but ran into an issue with the one provided being unable to be imported. ...