Unreal Engine Issues
Unreal Engine Issues
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Skeletal mesh reimport via legacy import creates duplicate Mesh sockets
UE - Editor - Content Pipeline - Import and ExportReimporting a Skeletal Mesh via legacy import duplicates mesh sockets. The issue does not reproduce when using the Interchange pipeline....
Cook Non-Determinism in USplineComponent
UE - Editor - Workflow Systems1. Non-Deterministic LastAuthority Serialization LastAuthority is assigned in USplineComponent::Serialize. Its value depends on the order in ...
Crash caused by a race condition in Nanite::DispatchBasePass()
UE - Rendering - Graphics Features - NaniteNanite::BuildShadingCommands() launches two asynchronous tasks: ShadingCommands.SetupTask ShadingCommands.BuildCommandsTask BuildCommandsTa...
Cluster Group Index Causes Incorrect Break Events in Geometry Collections
UE - Simulation - Physics - DestructionMore details in this [Link Removed]...
Visual discrepancy between lighting in Cloud Presenter and editor viewport
TM - RenderingReported in SF [Link Removed] In this user’s scene, the lighting in the Cloud Presenter does not match the lighting in the editor viewport. T...
ResavePackages fixredirects commandlet crashes Assertion failed: FLinkerLoad::FindExistingLinkerForPackage(Package)
UE - World Creation - Worldbuilding Tools - OFPA"Move to Level" of Landscape Tool leads component scale mismatch
UE - Graphics Tools - Terrain - LandscapeIn UE 5.7.2, when moving a Landscape Component to a sub-level using Landscape Mode > Manage > Move to Level, the proxy transform is not synchr...
ensure(PinHelpers::UnresolvedPins.Num() == 0); fails after undoing in the editor
UE - Framework - Blueprint EditorThe underlying cause is some edge case involving a math expression node, which does some perhaps naive things with a contained graph....
Linker Instancing Context duplication results in OOM
UE - World Creation - Worldbuilding Tools - OFPAIn order to fix a major issue involving dissapearing actors during cook, we added instancing context duplication in 31925640. This actually u...
Rendered panoramas using Lumen may be overexposed
TM - RenderingReported in SF [Link Removed] Lumen Panorama renders in 2025.2 may appear overexposed compared to the viewport, or when comparing the same re...