Unreal Engine Issues
Unreal Engine Issues
Niagara Fluids Grid3D_Gas_Explosion causes a crash
UE - Niagara - May 4, 2022Placing Grid3D_Gas_Explosion into a level then packaging the level for windows will crash the packaged project. The package will give an error that it crashed while loading and quit. This does not ...
Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior
UE - Simulation - Physics - Nov 21, 2024Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior. In the repro project provided (see addl in ...
Changing the channel name inside of the channel mask parameter node results in crash
UE - Rendering Architecture - Materials - Mar 4, 2020Changing the name of a channel inside of the channel mask parameter node results in a crash. ...
Crash when sculpting on duplicated landscape with edit layers enabled
UE - Graphics Tools - Terrain - Landscape - Jun 8, 2021Crash happens when trying to sculpt on a duplicated landscape that has edit layers enabled. This crash does not occur for landscapes that are duplicated with edit layers disabled. ...
Using NewObject inside PostInitProperties causes the editor to crash
UE - Gameplay - Blueprint - Oct 23, 2015Using NewObject inside PostInitProperties and creating a BP of the class will cause the editor to crash on PIE if the BP is is set in gamemode defaults ...
Crash Applying Multiple Anim Modifiers
UE - Anim - Runtime - Sep 5, 2021Fatal error: [Link Removed] [Line: 2516] Fatal error: [Link Removed] [Line: 2516]Objects have the same fully qualified name but different paths. New Object: MotionExtractorModifier /Game/Characters/ ...
During SIE (simulate) and ejected-PIE, modifying a map actor causes triggers RerunConstructionScript() which discards all runtime modifications to SCS components
UE - Framework - Blueprint Runtime - Sep 6, 2024When Simulating, or Playing-In-Editor and ejected, modifying an actor in the editor world causes the SIE/PIE runtime actor to recreate its blueprint added components via AActor::RerunConstructionScr ...
Editor crashes when an Animation Blueprint Template is compiled with 'Layered Blend Per Bone' node
UE - Anim - Runtime - Mar 17, 2022Editor crashes when an Animation Blueprint Template is compiled with 'Layered Blend Per Bone' node. ...
Copy-pasting an actor property that is a set of strings adds extra quotes and escapes
UE - Editor - Aug 24, 2025Copy-pasting an actor property that is a set of strings adds extra quotes and escapes. The licensee has reported: The problem doesn't happen for example for properties of types set of integers, nor ...
ListView crashes when GlobalInvalidation is enabled.
UE - Editor - UI Systems - Slate - Jan 11, 2022Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...