Unreal Engine Issues
Unreal Engine Issues
Crash when attempting to change the parent of a material instance constant through editor scripting
UE - Rendering Architecture - Materials - Apr 9, 2025The built-in class "UMaterialEditingLibrary" provides various editor scripting functions related to creating and editing materials and material instances. One of these functions, UMaterialEditingLib ...
[CrashReport] Crash CheckForWorldGCLeaks() - EditorDestroyWorld()
UE - AI - Sep 8, 2017This is a somewhat common but longstanding Mac crash that has affected users since at least 4.13. Recently in 4.17.1, the crashes are all occurring in various ARKit projects User DescriptionsI add ...
PDI-DrawPoint - Zoomfactor being calculated incorrectly
UE - Graphics Features - Feb 20, 2017A licensee has reported that the ZoomFactor variable inside of the DrawPoint function is being calculated incorrectly. It currently is calculated using the lesser of the projection matrix's horizont ...
Quality settings should not affect landscape resolution
UE - LD & Modeling - Terrain - Landscape - Mar 10, 2015Changing the quality settings (or having them change on you automatically in the editor) drops mips on landscape heightmap textures, which isn't desirable as it makes it look like there are collisio ...
Foliage radius does not affect other foliage assets
UE - World Creation - Worldbuilding Tools - Foliage - May 5, 2016Setting the radius on a foliage asset does not prevent other foliage assets from being painted within that radius. Regression (no) issues (does) occur in 4.10.4 ...
SkelMeshMerge not working for meshes with >1 LOD
OLD - Anim - May 31, 2018Reported on UDN (see Additional Info URL). Looking at code, we call USkeletalMesh::AllocateResourceForRendering for every LOD, but we should only call it once. Need to check if our SkelMeshMerge t ...
Actor Enable Collision does not affect ISM
UE - Simulation - Physics - Nov 12, 2020The problem was reported via UE Bug Submission. I was able to repro with their provided test project. ...
Scene Capture Cube not affected by bloom
UE - Virtual Production - Jun 17, 2021SplineComponent - setting roll affects tangents
UE - Framework - Components - Jun 12, 2023Licensee reports issue with setting roll on a spline component control point. ...
Synthetic benchmark is affected by Scalability Settings
UE - Rendering Architecture - RHI - Feb 19, 2025Sumo Digital Ltd. has reported that the synthetic benchmark has skewed GPUIndex scores when changing graphics scalability settings (i.e. r.LumenScreenProbeGather.DownsampleFactor). They are currentl ...