Unreal Engine Issues
Unreal Engine Issues
Certain UPROPERTY values are not updated during auto-recompile
UE - Gameplay - Blueprint - Aug 4, 2016Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...
Divide by zero in beam update can cause editor to crash in Cascade
UE - Niagara - Sep 23, 2019The licensee has traced the issue back to a divide by zero in UParticleModuleTypeDataBeam2::Update. If the Target and Source are the same then the beams magnitude will be zero. When there is a Nois ...
Chaos : Crash when destroying part of Geometry collections clustered by AnchorField
UE - Simulation - Physics - May 10, 2021Here's a workaround void DestroyParticle(TGeometryParticleHandle<T, d>* Particle) { auto PBDRigid = Particle->CastToRigidParticle(); if(PBDRigid) { RemoveFromMapAndArray(PBDRigid, Ac ...
[CrashReport] UE4Editor-D3D11RHI!FD3D11DynamicRHI::RHIDrawIndexedPrimitive(FRHIIndexBuffer *,int,unsigned int,unsigned int,unsigned int,unsigned int,unsigned int) [D3D11Commands.cpp:1670]
UE - Rendering Architecture - RHI - May 24, 2019Generated from CrashReporter ...
Crash accessing USplineComponent from Niagara while it is being updated on game thread
UE - Niagara - Aug 13, 2020I was working with a licensee on something unrelated, and ran into this niagara threading crash. It looks like UNiagaraDataInterfaceSpline::SampleSplinePositionByUnitDistance on one of the niagara h ...
Access violation - code c0000005 (first/second chance not available)
UE - Foundation - Core - Feb 4, 2015Crash Reporter: [Link Removed] Opening a project created in 4.6.1 with 4.7 built from GitHub branch 20150203 (last commit: 5bac1375be31053932c7b9123cc3bb94c70dd5e0) results in crash. ...
Ensure condition failed : loading sublevels containing reflection captures, UpdateAllReflectionCaptures may be called twice
UE - Graphics Features - Apr 1, 2021If sublevels containing multiple reflection captures are loaded in consecutive ticks and the execution timing of UpdateMaxCubemaps on rendering thread is delayed, UpdateAllReflectionCaptures will be ...
Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun
UE - Niagara - Aug 10, 2021This buffer overrun is probably caused by the ExportParticleDataToBlueprint module does not respecting the GPUAllocation Fixed Size setting in the module. In fact, out-of-range export data is not c ...
Linux crash on Import
UE - Platform - Linux - Jun 2, 2016Attempting to import content into a project causes the editor to crash on Linux ...
Undo change to Rest Offset causing crash in Static Mesh Editor
UE - Simulation - Physics - Editor - Aug 8, 2023When undoing any change to Rest Offset for a collision mesh the engine will crash. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binary //UE5/Release- ...