Standalone Material Function Instance creation results in crash

UE - Rendering Architecture - Materials - Mar 2, 2023

Coming from UDN https://udn.unrealengine.com/s/case/5004z00001mDBzzAAG/material-instance-asset-creation-workflows?fromCase=1 Either standalone MFI creation should work just like MaterialInstances, ...

Editor Freeze-Crash if Possessing Pawn with AI controller

UE - Gameplay - Mar 19, 2018

When trying to possess an already existing, uncontrolled character with an AI controller on server (from actor component) while in multiplayer mode, the editor keeps freezing until destroyed with t ...

Crash in when setting label in ChildActor (infinite loop in PECP)

UE - Gameplay - Feb 22, 2019

In void ATestActor::OnConstruction(const FTransform& Transform) there is an infinite loop occuring in a ping pong call between the SetActorLabel and the DestroyChildActor calls. Happens in vanil ...

Editor Crashes When Updating Captures on Sphere Reflection Captures

UE - Graphics Features - Feb 20, 2017

Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out of bounds: -1 from an array of size 11 Source Context: 200 CubemapArray.Updat ...

Crash enabling Async Scene and opening level in editor

UE - Gameplay - Jan 11, 2017

This is a regression from 4.14.3 at CL 3251583 ...

Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun

UE - Niagara - Aug 10, 2021

This 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 ...

Editor crashes on launch with Intel graphics on El Cap

UE - Graphics Features - Jan 19, 2017

Assertion failed: GMaxRHIFeatureLevel == ERHIFeatureLevel::SM5 [Link Removed] [Line: 39] Run with the following command line: EngineQAs-MacBook-Pro:~ engineqa-admin$ /Users/Shared/UnrealEngine/4.15 ...

Crash occurs when opening FP_Walk_Fwd in the First Person Template

UE - Anim - Runtime - Sep 12, 2023

This is a regression. Tested in //UE5/Release-5.2 CL26001984 Opening the FP_Walk_Fwd animation in the first person template results in an assertion. ...

Editor crashes when connecting Eye Adaptation to Base Color

UE - Graphics Features - Apr 11, 2019

This problem occurs when we use the Eye Adaptation node for calculations. Also, it does not seem to happen in 4.21. ...