Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_UMG!UButton::SynchronizeProperties() [button.cpp:62]
UE - Editor - UI Systems - Sep 7, 2017This is an infrequent but longstanding crash that has occurred since at least 4.13 and affected more than 350 users. User DescriptionsI using widget bp. I Try moving blur mistake same time press ct ...
UnkownRef Mips can cause TextureStreaming peaks during loading
UE - Graphics Features - Mar 27, 2023UnkownRef Mips is meant to fix/workaround the problem where some textures are used for rendering but they don't have any component references them (such as texture used by PP effects) These UnkownR ...
Reversed Animations don't play properly using Skeletal Mesh Pose and animations with Keep State in Sequencer
UE - Anim - Sequencer - Nov 26, 2018The bug seems to only reproduce when setting animations in sequencer and only if the animations are set to "Keep state". Setting them to "restore default" makes the reversed animation play correctly ...
NVIDIA 5080 GPU Crash when launching City Sample with DX12
UE - Graphics Features - Lumen - Apr 16, 2025UPDATE This issue no longer reproduces on driver versions 580.88 and higher. City Sample game crashes immediately upon opening with a NVIDIA 5080 with the latest drivers as well as some previous dr ...
ShooterGame references images in slate from a folder that does not exist
Docs - Samples - Jul 8, 2015A user has found that there are a few lines of code inside of shooter game that references a folder that does not exist. The lines of code below are the lines of code that reference images in an ima ...
Unable to add/compile code for Automation Test
UE - Automation Test - May 22, 2017When following the documentation on setting up automation tests, the sample provided for "Simple Tests" does not successfully compile. One of two compiles errors is given based on the TFlag used A ...
AreaNavModifiers generated by SplineNavModifierComponent have the component-to-world transform incorrectly applied twice
UE - AI - Navigation - Aug 15, 2025USplineNavModifierComponent was made available in UE 5.4. It generates several FAreaNavModifier instances covering a region with a certain thickness around a USplineComponent, and worked correctly u ...
VR Preview crash when shadow quality is set to low
UE - Platform - XR - Dec 5, 2024[/Script/Engine.RendererSettings] r.Tonemapper.Sharpen=2 r.TemporalAA.Upsampling=False r.DefaultFeature.AutoExposure.ExtendDefaultLuminanceRange=True r.LightPropagationVolume=0 r.ReflectionCaptureRe ...
EDITOR: High Resolution Screenshot: Unable to capture high res shots in game or during cinematics
Tools - Sep 2, 2014BRANCH: //depot/UE4/Promotable-CL-2281016 CHANGELIST: 2281016 BUILD TYPE: P4 PLATFORM: Windows FREQUENCY: 3/3 DESCRIPTION: Unable to capture High Res shots in game or during cinematics REPRO STEPS: ...
[CrashReport] UE4Editor_CoreUObject!IncrementalPurgeGarbage() [garbagecollection.cpp:1042]
UE - Editor - UI Systems - Localization - May 31, 2016This JIRA is being entered as a result of being one of the top crashes in 4.12 Preview 5 In the 4.12.0 release, we currently have a user on the Answerhub who experiences this crash: https://answers ...