Crash: Changing Material Property Overrides of Material Instance

UE - Graphics Features - Dec 14, 2016

When a material has a static bool parameter AND this is overridden in a material instance, Trying to change Blend Mode or Shading Model under the Material Property Overrides crashes the editor. Thi ...

uncaught exception: out of memory after launching project onto HTML5 (32-bit browsers)

UE - Platform - Mobile - Mar 20, 2017

First person template project is struggling to run on Firefox 32-bit Version 52.0.1 and eventually throws an "uncaught exception: out of memory" error. Occurs in both BP and C++ projects. May be a ...

Vehicle Template with Thruster Configuration will be affected by force relative to the distance from the origin

UE - Simulation - Physics - Mar 18, 2025

Vehicle Template vehicle with added Thruster Configuration to its VehicleMovementComponent will be affected by force relative to the distance from the origin. At around 200000 the force is enough to ...

Using OnlineSubsystemGoogle cause ITMS-90809 warning when uploading iOS build to AppStoreConnect

UE - Online - Jan 16, 2020

Because the OnlineSubsystemGoogle for iOS use old GoogleSigninSDK(Ver4.x), when uploading the iOS build to AppStoreConnect, ITMS-90809 (using a deprecated UIWebView) will be issued. To fix this, we ...

Add Substrate Material Support to Lumen Performance Overview

UE - Graphics Features - Substrate - Feb 10, 2025

There is a discrepancy when inspecting Substrate materials in the Lumen Performance Overview. Compared to viewing non-Substrate materials the overview show all surfaces in red indicating that Lumen ...

This project crashes when one Blueprint is compiled if its child Blueprint is opened in another tab

UE - Gameplay - Blueprint - Mar 18, 2015

This project crashes when one Blueprint is compiled if its child Blueprint is opened in another tab. This only occurs with one Parent/Child combination: the crash occurs when compiling Building whil ...

Editor hits Asserts when trying to use debug rendering such as ShowFlag.LODColoration

UE - Rendering Architecture - RHI - Sep 22, 2020

The assert in BasePassRendering.cpp:693 fires, crashing to desktop when using this console command in the editor, in PIE, and closes out the window when playing in Standalone. Does not crash when us ...

Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints

UE - World Creation - Worldbuilding Tools - Level Instances - Oct 27, 2022

This is not a regression. Tested in //UE5/Release-5.0 CL 20979098 Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints. Rerunning the Build > Pack Level Ac ...

Starter Content Blueprint_Effect_Explosion Root Componet In Invalid State

UE - Content - Feature Pack - Sep 22, 2023

The Blueprint_Effect_Explosion Actor's Root Component in the Starter Content is in some form of invalid state. It reports to have a scale of (1.0, 1.0, 1.0) in the details panel but further behaviou ...

[CrashReport] UE4Editor_Engine!FStaticMeshRenderData::AllocateLODResources() [staticmesh.cpp:775]

UE - Graphics Features - Apr 19, 2018

No user comments in crash group 771 void FStaticMeshRenderData::AllocateLODResources(int32 NumLODs) 772 { 773 check(LODResources.Num() == 0); 774 ***** while (LODResour ...