Unreal Engine Issues
Unreal Engine Issues
Luminance coefficients used throughout the engine not matching sRGB standard
UE - Virtual Production - Rendering - Color - Nov 27, 2023This is causing confusion when working with color in UE5, specifically when validating for HDR between different reference materials. It has also been noted that the color primaries in PAL and NTSC ...
Static Mesh Only enabled Foliage Actor causes serialization error in packaged game
UE - World Creation - Worldbuilding Tools - Nov 24, 2023The crash can be worked around by modifying FFoliageISMActor::Serialize as following code : void FFoliageISMActor::Serialize(FArchive& Ar) { #if WITH_EDITORONLY_DATA if (!Ar.IsCooking()) // ...
Delete of file that is not at latest fails silently and removes the entry from content browser
UE - Editor - Applied Usability - Nov 22, 2023Crash when spawning actor with no viewport initialized
UE - Editor - Workflow Systems - Nov 22, 2023If an attempt to spawn an actor is made before the Level Editor Viewport is fully initialized (i.e. before it has had a chance to get rendered at least once), and that actor has no specific Factory ...
"Favorite Levels" not persisting correctly when changed in the Editor
UE - Editor - Workflow Systems - Nov 21, 2023In the Level Editor's "File" menu, there is a "Favorite Levels" list, which is persisted in the config file "EditorPerProjectUserSettings.ini" under section "[FavoriteFiles]". Manually editing this ...
PCG graph always resave in the ResavePackage commandlet
UE - World Creation - Procedural Tools - PCG Graph - Nov 20, 2023The package that contains the PCGGrapch is dirtied on load (UPackage::SetDirtyFlag) which triggers a resave operation. I traced it back to the following callstack: UnrealEditor-CoreUObject.dll!UPac ...
FPropertySoftPath::Resolve doesn't resolve c-array elements properly
UE - Gameplay - Nov 20, 2023a fix was proposed in the UDN but it needs to be tested and revised ...
Single sided complex collision mesh collision blocks character movement from backside
UE - Simulation - Physics - Query - Nov 17, 2023Commenting out the branch in FTriangleMeshSweepVisitor::VisitSweep is a work-around.if (CullsBackFaceSweepsCode != 0) { if (VectorMaskBits(IsBackFace)) { // Don't cull the back face ...
In-editor hitch when deleting one actor in a world with many loaded actors
UE - Foundation - Core - Nov 17, 2023When editing a level with many actors (1000+), deleting an actor results in a noticeable hitch: the editor becomes unresponsive for seconds. This hitch becomes longer the more actors are loaded and ...