Unreal Engine Issues
Unreal Engine Issues
NavMesh generation should not care for Actors that are hidden in the Editor.
UE - AI - Navigation - Aug 5, 2025The problem is that the Cube is still loaded but "HiddenEd". It's AActor::bHiddenEdLayer property is set to true by the WorldPartition System. The Actor is dirty which makes the WP system pin it (wo ...
Environment Query System (EQS): EnvQuery runtime template object can be created with a non-unique name, corrupting the EnvQueryManager cache
UE - AI - Aug 5, 2025On file [Engine\Source\Runtime\AIModule\Private\EnvironmentQuery\EnvQueryManager.cpp:812], function UEnvQueryManager::CreateQueryInstance() uses StaticDuplicateObject() to create a new UEnvQuery* (d ...
SSR doesn't reflect Skydome Mesh/Material correctly in Vulkan mobile preview
UE - Platform - Mobile - Aug 4, 20255.6[Image Removed] 5.5[Image Removed][Link Removed] ...
SkinWeightsAsVertexMask in DeformerGraph does not respect SkinWeightProfile
UE - Anim - Rigging - Deformer - Aug 1, 2025The WeightBuffer passed to the shader does not reflect the SkinWeightProfile. The work around is : void FOptimusSkinWeightsAsVertexMaskDataProviderProxy::GatherDispatchData(FDispatchData const& In ...
Crash when changing parent of Material Instance with Layered Materials and viewing Layer Parameters
UE - Rendering - Architecture - Materials - Aug 1, 2025Reparenting a MaterialInstance that uses Material Layers to another instance with a different layer configuration can cause the editor to crash when opening the Layer Parameters tab. This appears to ...
If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible
UE - Virtual Production - Tools - Jul 31, 2025If any light source is deleted, and a single light has its visibility state changed in LightMixer, all the other lights in the scene that were invisible turn visible. The behavior only shows after d ...
The LightMixer window is making all scene lights visible once you toggle the visibility of a single light
UE - Virtual Production - Tools - Jul 31, 2025The LightMixer window is making all scene lights visible once you toggle a single light as visible. Any light source (except SkyLight) will be turn visible once a single light is made visible using ...
Windowed game window can restore to the wrong size due to DPI Awareness is configured after setting initial window size
UE - Graphics Features - Jul 31, 2025If in use, DPI Awareness is set after the initial window size is set. For a Windowed window, the settings are unable to restore the prior resolution settings on an application restart due to the pr ...
Hardware Raytracing on Lumen can cause a crash on AMD Radeon GPUs
UE - Rendering - Graphics Features - Lumen - Jul 29, 2025Hardware Raytracing support can cause a crash on AMD Radeon GPUs when creating the RT pipeline state. ...
GPULightmass baking issues on AMD
UE - Graphics Features - Jul 28, 2025Volumetric Light Maps are not generated correctly when baked with GPU Lightmass on AMD GPUs. The issue has been reproduced on RX 9070, RX 9070 XT, and RX 7900 XT. ...