Unreal Engine Issues
Unreal Engine Issues
MipLevel sample mode doesn't work as expected in Adaptive RVT
UE - Graphics Features - Nov 30, 2021When StaticMeshComponent is added to an empty Actor, no HLOD is generated.
UE - World Creation - Worldbuilding Tools - HLOD - Jul 1, 2022When a Cube of StaticMeshActor is placed, it is generated without any problem. ...
Lumen tile classification flicker
UE - Graphics Features - Lumen - Apr 19, 2023While we suggest using screenpercentage at 25%, it is visible at higher percentages. Video showing the flickering:https://udn.unrealengine.com/s/contentdocument/0694z00000Qw4jPAAR ...
Media Plate Actor becomes blacked out when set to Spawnable in a Level Sequencer
UE - Virtual Production - Rendering - Jun 7, 2023saving a media plate actor set to spawnable in a level sequence causes the media plate actor to become black. there are two known workarounds 1. toggling the Media plate to Possessable, and Spawnabl ...
Nanite static mesh is still visible even if "Render in main pass" or "Render in depth pass" is used
UE - Rendering Architecture - Jan 18, 2024Enabling SunPosition engine plugin causes a missing file warning in a packaged build
UE - Editor - Content Pipeline - Apr 18, 2024Licensee noted that editor-only code from the Sun Position Calculator engine plugin was causing a warning in packaged builds. A similar issue was reported for 4.22 [Link Removed], but this appears t ...
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 ...
Metdata 'ForceAsFunction' does not prevent conversion to event
UE - Framework - Blueprint Editor - Mar 6, 2025Quote from the UDN: This is easily fixed with a conditional in bool FBlueprintEditor::ConvertFunctionIfValid(UK2Node_FunctionEntry* FuncEntryNode) which we've done locally, but should probably be ...
Landscape raytracing geometry always updates every frame
UE - Graphics Features - Ray Tracing - Apr 11, 2025LOD 0 Landscape meshes are always updated in FLandscapeComponentSceneProxy::GetDynamicRayTracingInstances because* r.RayTracing.Geometry.Landscape.LODsUpdateEveryFrame* (GLandscapeRayTracingGeometry ...
PIE Seamless Travel with a standalone level instance causes assert in UWorldPartition::BeginDestroy
UE - World Creation - Worldbuilding Tools - Level Instances - May 8, 2025This check is hit on the server instance while it is performing garbage collection during the seamless travel. During this garbage collection, it will determine that the UWorldPartition object belon ...