Nvidia dedicated graphics card causes menus in the editor to duplicate

Tools - Jun 17, 2015

When using a laptop with an added in graphics card that's Nvidia, the menus in the editor duplicate. However, if you force the editor to use the integrated graphics card, it does not occur. From th ...

Function about Comparing Manifest Version in HttpChunkInstaller does not Consider Manifest File Update

Portal - May 7, 2018

Current HttpChunkInstaller consider version data of manifest.But it does not consider the manifest file update. So, if user update the manifest file, HttpChunkInstaller ignores it. If changing the V ...

FSoftObjectPath::ResolveObject references to the Editor's object in the first frame of Movie Render Queue

UE - Anim - Sequencer - MRQ - Dec 8, 2023

When implementing a sequencer system that uses FSoftObjectPath to reference an actor placed in a level (at runtime, the corresponding actor is obtained by calling FSoftObjectPath::ResolveObject), Re ...

FNotifyNodeInterface crashes when referenced Notify is invalid

UE - Anim - Runtime - Mar 1, 2024

Currently FNotifyNodeInterface directly references notifies that live within the related anim sequence.  This can cause intermittent crashes when notifies are removed as the UI can still reference t ...

Investigate Streaming getting disabled on a World Partition map as a side-effect of loading the map as a regular asset

UE - World Creation - Worldbuilding Tools - World Partition - Apr 1, 2025

We recently encountered an odd issue where loading into our main world partitioned map would result in a crash caused by all streaming cells getting loaded at the same time. Turns out this was cause ...

[CrashReport] Integer divide-by-zero | RHIGetRenderQueryResult() [d3d11query.cpp:59]

UE - Graphics Features - Aug 29, 2017

This is a common and longstanding crash that has occurred since at least the 4.15 release and has affected more than 200 users. User Descriptionsafter opening a projectwas just trying to start a pr ...

Shadow flicker with dynamic lighting at low cascade levels when FOV changes

UE - Graphics Features - Sep 1, 2017

When using low shadow settings there is a flicker that occurs when changing a camera FOV, the flicker will end as soon as the FOV has finished adjusting to the new FOV. This can occur when:Using a ...

Lightmaps on Mobile Devices Appear Dirty and Blurry

UE - Platform - Mobile - Nov 28, 2017

When deploying project to a mobile device, the quality of the baked lighting and shadows becomes very poor compared to "Mobile Preview." Lightmaps appear dirty and blurry, with splotches (As shown i ...

Compiling blueprint with nested subobjects loses data

UE - Gameplay - Blueprint - Jan 25, 2018

The attached project is from a licensee who made a Quest system where a blueprint has several ConditionContainer instanced subobjects, that contain EdGraphs with custom question condition nodes. On ...

AssetManager ModifyCook does not correctly apply PrimaryAssetLabel references

UE - Foundation - Data Pipeline - Cooker - Feb 10, 2022

Right now the AssetManager uses different logic in ModifyCook vs VerifyCanCook, specifically related to secondary assets like textures or maps that are indirectly loaded by soft object paths and are ...