Unreal Engine Issues
Unreal Engine Issues
Skeletal meshes are not simulating physics
UE - Simulation - Physics - Feb 6, 2017Skeletal meshes do not simulate physics when playing in viewport. They are not affected by gravity, nor do they ragdoll. This doesn't occur in UE4/Main. This occurs with Immediate Mode Physics of ...
BinnedMalloc and BinnedMalloc2 performance on Linux is not good
UE - Foundation - Core - Jun 8, 2017This test took 13 seconds using Binned2 and 10 seconds using Binned1. It took 0.06 seconds using jemalloc ...
[CrashReport] UE4Editor-MetalRHI.dylib!FMetalVertexBuffer::FMetalVertexBuffer()
UE - Graphics Features - Jul 25, 2017This is a common Mac crash that has affected users since at least 4.14. Unfortunately users have not provided any descriptions of their actions when the crash occurred. ...
Data Tables can no longer import numeric enum values
Tools - Nov 1, 2017Some changes to UEnumProperty::ImportText_Internal prevent this importing the stringified number (which is a float) as an enum value. This affects the JSON importer, and maybe the CSV one too. ...
Property Coloration isn't supported for Nanite
UE - Graphics Features - Nanite - Sep 11, 2023Property Coloration View Mode is not supported by Nanite. (Left cube is Nanite and isn't affected by the Property Coloration view mode) [Image Removed] ...
Adding Images: The image header is unrecognized
RC - Editor - Feb 14, 2025This issue occurs only on Windows 11 24H2, but it affects all RealityCapture versions on this OS. It is allso not possible to open the images with the Windows Photos App. ...
Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps
UE - Graphics Features - Feb 18, 2025Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps even though the valu never affect light baking process in Lightmass. ...
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 ...
Lighting Build Fails With High Density Foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jan 16, 2018Trying to build lighting on a map with high density foliage will fail lighting build or cause the editor to crash. This occurs in 4.15, 4.16, 4.17, and 4.18. There have been multiple reports of this ...
BlueprintNativeEvents with no return value (void) cannot be overridden in Blueprints.
UE - Gameplay - Blueprint - Dec 22, 2014BlueprintNativeEvents (and BlueprintImplementableEvents) are not available to be overridden in a Blueprint Graph if they do not return a value. This affects both functions present in source code, as ...