Unreal Engine Issues
Unreal Engine Issues
Root Motion Not Retained when Retargeting Animation Assets from UE4 to UE5
UE - Anim - Rigging - Retargeting - Apr 12, 2022Occurs 5/5 Times RootMotion of an animation asset is not retained when retargeting Root Motion Animation asset from UE4 to UE5. ...
Crash launch application adding .umap url
UE - Foundation - Core - Aug 6, 2020The application crashes when adding ".umap" to the launch map at application launch. If not specify ".umap", it will be able to launch application. There appears to be a failure to parse the URL. Th ...
"Assign" node can cause a crash when placed in a graph
UE - Gameplay - Blueprint Compiler - Apr 26, 2022This may only happen with upgraded projects that went from 4.27 up to 5.0.1 ...
FLinearColor ignores Blue in slate code
UE - Editor - UI Systems - Slate - Jan 17, 2017When FLinearColor is used inside slate code, the third vector value is ignored. This causes FLinearColor(1,1,1) to produce the same color as FLinearColor(1,1,0). This also causes FLinearColor::Blu ...
Collision profiles are reset when blueprint is loaded
UE - Gameplay - Jan 6, 2025In UE 5.5 (and earlier versions), FCollisionResponse::operator== has incorrect behavior where it will detect that two collision response containers are identical if they have the same number of entr ...
Problems with shadows on transluscent materials
UE - Rendering Architecture - Sep 24, 2024Shadows on the surface of SingleLayerWater are heavily pixelated, and don't appear to use bilinear filtering at all. Also tested on //UE5/Release-5.5, CL: 36481335 ...
FStaticMeshCompiler::FinishCompilation stalls when compiling multiple meshes.
UE - CoreTech - Oct 7, 2024Calling "FStaticMeshCompiler::FinishCompilation" on multiple assets simultaneously can cause a hang. Also tested on //UE5/Release-5.5, CL: 36784631 ...
Error launching onto HTML5: "Expression (0) failed in \Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:428!"
UE - Platform - Mobile - May 9, 2017This is launching on to Firefox 53.0.2 (64-bit) and also occurs in Main. Error message:uncaught exception: ASM_CONSTS<@blob:http://localhost:53501/4354ee7b-de4a-419b-b0bc-5d58ff557ed2:1:38655 _emsc ...
CSM Shadows disappearing at larger coordinates with different FOVs
UE - Graphics Features - Shadows - Apr 5, 2024Cascaded shadows disappear at some FOVs when far from the world origin. This behavior was not present in 5.2. Also found in CL: 32690246 in Release-5.4 ...
Copying a BP function with split pins creates all individual params of the struct, instead of making the parent struct
UE - Gameplay - Blueprint Editor - Oct 3, 2021This occurs in UE5/EA and in Release-5.0 ...