Unreal Engine Issues
Unreal Engine Issues
Global illumination Postprocess settings doesn't affect Reflection on Mobile
UE - Platform - Mobile - Jul 29, 2019Postprocess GI related settings look like working in 4.22 on Mobile now, but seems buggy, Not sure if it has supposed to be supported on Mobile since it has no any info in Doc or 4.22's release note ...
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 ...
Allow multicast RPCs to be recorded by replays in NM_Standalone
UE - Networking - Sep 21, 2018No game net driver exists in a standalone game, so there is currently no code path to forward multicast RPC calls to the demo net driver for recording. ...
SingleSampleShadowFromStationaryLights does not work in UE5 (when GPU-Scene is used)
UE - Graphics Features - Shadows - Jul 21, 2022The flag is not propagated in FPrimitiveSceneShaderData::FPrimitiveSceneShaderData and so is missing in GPU-Scene primitive data. Need to add: .UseSingleSampleShadowFromStationaryLights(Proxy->UseS ...
Crash when DFAO is disabled and a lower scalability is used while Distance Field Shadowing is enabled.
UE - Graphics Features - Feb 2, 2016When enabling Distance Fields for a project and adjusting the cvars to disable DFAO and set a lower Detail Mode will result in a crash. Using the console commands outlined in the steps will work. ...
Local variables do not appear in the context menu inside collapsed graphs
UE - Gameplay - Blueprint - May 21, 2015Local variables do not appear in the context menu inside collapsed graphs. They can still be dragged into the graph. Reproduced in 4.8 Preview 3 and Main (//depot/UE4/Promotable-CL-2560501) ...
RestrictedToClasses UCLASS Meta expects space delimiters but documentation shows comma delimiters
UE - Gameplay - Jul 19, 2019The documentation: https://docs.unrealengine.com/en-US/Programming/UnrealArchitecture/Reference/Metadata/index.html shows the RestrictedToClasses meta syntax as being RestrictedToClasses="Class1, C ...
Volumetric Translucent Shadow not showing in game mode
UE - Graphics Features - Sep 8, 2020Volumetric Translucent Shadow not showing in game mode for versions 4.23-4.25. Reported and tested in versions 4.25.3(CL 13942748), 4.24.3(CL 11590370), 4.23.1(CL 9631420), 4.22.3(CL 7053642). Wor ...
Repeated GPU Timeout after drawing to render target
UE - Graphics Features - Dec 7, 2022(Enduring Games) Included Insights trace to show the memory spike in LLM followed by some pretty large time cost frames in the timeline. (Link to insights trace in comments section) ...
DataValidation System Implemented in EditorUtilityBlueprint Subsystem Crash
UE - Editor - Content Pipeline - Jul 24, 2023Implementing data validation via an Editor Utility Blueprint works fine in the editor, but when run via the commandlet, the blueprint won't load the editor utility subsystems (i.e. Static Mesh Edito ...