Unreal Engine Issues
Unreal Engine Issues
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Sphere Mask ArgInvHardness missing multiplication
UE - Rendering Architecture - MaterialsHi Epic, In MaterialExpressions.cpp UMaterialExpressionSphereMask::Compile(), hardness is not calculated the same way in both <if> conditions...
Water Body Custom generates Map Check Warnings
UE - Graphics Tools - Terrain - WaterFrom licensee: Water Body Custom Actors generate this warning during Map Check: WaterBodyCustom_UAID_507C6F36B9215C5B02_1871778061 Static me...
POST /v1/testdata API doesn't properly convert data to BSON
UE - Foundation - Horde - ServerPost: { "jobId": "685b12ad6765a5c9fefad260", "stepId": "a991", "key": "output-otem-job2", "data": { "Type": "Simple Report",...
Crash during Datasmith file import when not using Keep Hierarchy
TM - InteroperabilityReported to support. The user has reported that one of their .udatasmith files will consistently crash in TM 2025.1.1 during import. This wa...
Niagara mesh particles invalidate lighting when "Cast Shadow" is enabled with Hardware Ray Tracing enabled
UE - Graphics Features - LumenLumen HWRT, combined with Niagara Mesh Renderer, can cause the Lumen Scene to be reset, resulting in a sudden change to indirect lighting....
Iris - incorrect initial state in pawn's BeginPlay if replicated via huge object path
UE - Networking - IrisThis occurs when the pawn is initially replicated using the huge object path when first connecting to a server. Destroying and restarting the ...
iPadOS AR App Crashes when ARKit's "Use Scene Depth for Occlusion" is Enabled
UE - Platform - XRDoes not crash in 5.4 on same hardware so looks like a regression. Attached Unreal logs indicate source of critical error: 'FARKitCameraOver...
AMD PSO creation causes hang in SceneCapture2D with Nanite + ShowOnly primitives
UE - Graphics Features - NaniteAMD RX 6800 XT driver appears to hang (or take a very long time) in the PSO creation of the FInstanceCullVSM_CS shader when using Nanite primi...
Performance hitch from RemoveGeometryCache flushing the render thread
UE - Editor - Content Pipeline - AlembicFGeometryCacheStreamingManager::RemoveGeometryCache calls FlushRenderingCommands which shows up as a hitch when profiling. [Link Removed] Id...
Staging a patch does not copy pak signatures when staging
UE - FoundationWhen creating a patch with pak signing enabled the created output folder contains the pak files from the base release but does not contain the...