Unreal Engine Issues
Unreal Engine Issues
Can't connect Date Time and Time Spawn pins to math nodes
UE - Framework - Blueprint Editor - Feb 2, 2023we can do a "cheap fix" here by adding the "IgnoreTypePromotion" metadata to the date time functions, but there are some underlying issues with the FindBestMatching func in this case causing it to f ...
Light function materials using WorldPosition do not render correctly to volumetric fog if there is more than one
UE - Graphics Features - Mar 27, 2023There is a one-line fix for this in a shader file, see their PR on GitHub:https://github.com/EpicGames/UnrealEngine/pull/10251/files ...
Crash when double clicking on RowStruct's CurveEditor
UE - Editor - Mar 15, 2024This problem can be reproduced with UE5.3 even after applying fix [Link Removed] Closed . We have verified this issue with U ...
Initialization error when creating FEventReply objects from Python
UE - Editor - UI Systems - UMG - Nov 28, 2025the handled value passed to unlock_mouse is actually treated as unhandled, because FEventReply has no uproperty and no Identical()function of its own. Adding WithIdenticalViaEquality can fix this is ...
Crash in UHierarchicalInstancedStaticMeshComponent::GetOverlappingSphereCount
UE - World Creation - Worldbuilding Tools - Foliage - May 15, 2018A licensee has reported a regression from 4.18.3 to 4.19.2 that is causing crashes to occur in their project. The crash occurs when walking onto their foliage in a packaged game. This does not happe ...
Start time of subtitle gets incorrectly modified at runtime
Tools - Apr 14, 2016The time field of a subtitle is incremented incorrectly at runtime. This is caused by the wrong array being modified by the subtitle manager when queuing subtitles. A fix is provided by the licensee ...
Viewports: Marquee selection always selects skeletal meshes in ortho viewports
Tools - Apr 16, 2015Box select always selects skeletal meshes in ortho viewports, even when not touching the actor. Switching on Strict Box Selection fixes it as a workaround. ...
Custom font reverts to default font in a packaged game
UE - Editor - UI Systems - Jan 19, 2017Custom font reverts to default font in a packaged game Notes: Importing of fonts appears to be handled differently for 4.15 Appears to be a regression ...
Packaging fails if a Blueprint is set to be nativized but it is not included in a level
UE - Gameplay - Blueprint Runtime - Apr 6, 2017Packaging a project will fail if a Blueprint is set to be nativized and that Blueprint is not included in a level. REGRESSION: Yes. The project packages successfully in 4.15. ...
[CrashReport] UE4Editor_Engine!FHLSLMaterialTranslator::GetParameterUniformExpression() [hlslmaterialtranslator.h:1671]
UE - Graphics Features - May 25, 2017This is a top trending crash in the 4.16 release. This may be a regression from 4.15. Additional information is currently unknown. Users have not provided any details. ...