Inserting before a FSlateImageRun twice will cause crash

UE - Editor - UI Systems - Apr 12, 2019

NiagaraSystem with EniagaraGpuComputeTickStage::PostInitViews rarely crashes due to multi-thread race conflicts

UE - Niagara - Mar 1, 2025

NiagaraSystem with EEiagaraGpuComputeTickStage::PostInitViews should not have bSupportsParallelGDME because of possible multi-threaded contention, but FNiagaraSystemInstanceController::GetGpuCompute ...

Memory Leak caused by auto save files

UE - World Creation - Worldbuilding Tools - World Partition - Mar 20, 2023

Rendering glitch when launching on Android

UE - Platform - Mobile - Aug 2, 2016

https://answers.unrealengine.com/questions/462957/rendering-glitch-when-launching-on-android-ue413-p.html I was able to repro it on Nexus5 with Android 5.1.1. ...

Copy/paste of multiple components does not preserve component names or attachment hierarchy

OLD - Enterprise - Mar 9, 2016

Copy/pasting scene components between blueprints loses: 1. The component name. 2. The parent/child hierarchy. It keeps the offsets, which is helpful. [image: Inline image 1] ...

[CrashReport] Crash after enabling the 'Composure' plugin

UE - Graphics Features - Jul 11, 2017

This crash occurs in the 4.17 Preview 1 Binary editor after enabling the Composure plugin. User DescriptionsEnabled the Composure plugin (and restarted editor) in 4.17 Preview 1 ...

Packaged ThirdPerson template with "start in vr" enabled packaged and launched with "-nohmd" crashes

UE - Platform - XR - Mar 31, 2021

The callstack is not XR-specific, it's just the engine trying to secure the audio device on startup, windows failing to return one, and the app not being able to continue safely. The crash does not ...

No Editor Audio on Linux when using ALSA

UE - Platform - Linux - Oct 31, 2017

No sound play in editor when using ALSA (Advanced Linux Sound Architecture), and log spam when launching a project ...

Black screen caused by depth of field on several mobile devices

UE - Platform - Mobile - Apr 24, 2017

DOF does not display correctly(screen turns black) on several mobile devices. I could repro the issue on:Samsung GALAXY S7, Android 6.0.1Xperia X Performance (F8132), Android 6.0.1 ...

GAS: RemoveActiveGameplayEffect crashes when called during world teardown for periodic GEs

UE - Gameplay - Gameplay Ability System - Mar 2, 2023

AbilitySystemComponent crashes when RemoveActiveGameplayEffect is called during world teardown for an active gameplay effect that ticks periodically, by unsafe GetWorld()->GetTimerManager() access w ...