Unreal Engine Issues
Unreal Engine Issues
Infinite Loop When Generating HLOD Clusters
UE - World Creation - Worldbuilding Tools - HLOD - Aug 8, 2018The HLOD system gets stuck in a infinite loop when building. Comment from the user: ++I've tracked it down to this code: const AActor* UHLODProxy::FindFirstActor(const ALODActor* LODActor) { a ...
[CrashReport] UE4Editor_Engine!FColorVertexBuffer::GetVertexColors() [colorvertexbuffer.cpp:313]
Tools - Nov 21, 2017This is a common crash in the 4.18 release. Users have not provided any descriptions about their actions when the crash occurred. Source Context 301 /** 302 * Specialized assignme ...
[CrashReport] UE4Editor_UMG!TBaseDelegate<FMargin>::operator=() [delegatesignatureimpl.inl:381]
UE - Editor - UI Systems - Aug 29, 2017This is a longstanding and common UMG crash that has affected more than 200 users since at least the 4.15 release. User DescriptionsI was working in the UI and undid several last changes in quick s ...
Axis Scale changes made in Project Settings > Input are ignored in PIE with Dedicated Server enabled
UE - Gameplay - Input - Jun 16, 2015Axis Scale changes made in Project Settings > Input are ignored in PIE with Dedicated Server enabled. Does not occur while Dedicated Serve is disabled. Reproduced in 4.7.6, 4.8.0, and Main (//depot ...
//UE5/Main - UE.EditorAutomation(RunTest=Physics) Win64 - CableActor_CableCameraActor6 and 2 tests failing due to cable actor disappearing
UE - Graphics Features - Feb 22, 2021### The following test(s) failed: ##### BasicCableComponentMaterials: Project.Functional Tests./Game/Tests/Actor/CableActor.BasicCableComponentMaterials * LogAutomationController: Error: S ...
Crash diffing an AnimBP with a node deleted from a State Machine Transition
UE - Gameplay - Blueprint - Mar 10, 2017Error message: Assertion failed: false [Link Removed] [Line: 1123] Looking for node K2Node_AnimGetter_327 but it cannot be found in provided panels Source Context: 1108 } 1109 111 ...
Adding a new macro to a Blueprint Macro Library after renaming the first macro causes a crash
UE - Gameplay - Blueprint - Mar 17, 2022It seems the editor crashes when adding a new Macro to a Blueprint Macro Library. This only occurs if you rename the macro that gets automatically created when you open the macro library to somethin ...
Rigidbody not moving when small force is applied, and only rotates when angular impulse ≥ 7
UE - Simulation - Physics - Solver - Jan 3, 2023Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
Invalid GUIDs on new material instance parameters cause overrides to break on base param rename
UE - Rendering Architecture - Materials - Sep 3, 2025When a parameter value is assigned on a newly created material instance (constant or dynamic) using Set***ParameterValueInternal, the parameter’s ExpressionGUID is left invalid (0,0,0,0). Parameter ...
[CrashReport] UE4Editor_Engine!FViewMatrices::FViewMatrices()
UE - Graphics Features - Aug 3, 2017This is a trending crash in the 4.17 previews. Unfortunately users have not provided any descriptions of their actions when the crash occurred. Source Context 464 FViewMatrices::FViewMatric ...