Multicast RPCs called from standalone instance are not recorded into replays

UE - Networking - Dec 13, 2023

This seems to have regressed because of the fix to [Link Removed]. Because UWorld::InternalGetNetMode now only returns the DemoNetDriver's NetMode when it is recording and in its tick, the multicast ...

Each bone scales are improperly applied in the physical animation

UE - Simulation - Physics - Character - Feb 4, 2025

Suggested fix from licensee is : PhysAnim.cpp@339 #if 0 FVector RelPos = RecipScale3D * RelTM.GetLocation(); #else FVector RelPos = (BoneIndex == 0) ? RecipScale3D * RelTM.GetLocation() : Rec ...

Virtual Texture Data GetNumMips reports one fewer mip than expected

UE - Graphics Features - Feb 27, 2025

FVirtualTextureBuiltData::GetNumMips() can return 1 fewer mip than it should due to a potential clamping issue at the end of FVirtualTextureBuilderDerivedInfo::InitializeFromBuildSettings() where it ...

Crash in GetScreenRect on OPPO and Vivo devices

UE - Platform - Mobile - Jul 11, 2017

Crash when not saving level after using MovieRenderQueue for that level

UE - Editor - Content Pipeline - USD - Feb 8, 2022

Crash when not saving level after using MovieRenderQueue for that level Repro rate 3/3 Regression Yes, issue is not reproduced on //UE5/Release-5.0-EarlyAccess at CL 16682836 from LauncherFatal er ...

[Stall] AudioMixerSourceManager::FlushCommandQueue when opening editor for asset

UE - Audio - Apr 7, 2022

Live issue. Stall occurring for some users in the 5.0 Release. Currently hit 577 times by 500 users as of 2022-04-29 No specific project occurring on ...

Material editor crash in 5.0.2

UE - Rendering Architecture - Materials - Sep 2, 2022

Subobject components do not have undo functionality within the level

Tools - Jan 4, 2021

When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not.  I could not repro this behavior with non-native component ...

TraceHitInfo not returning correct PhysMat when Changed at Runtime via MID

UE - Simulation - Physics - Jan 11, 2016

Line Traces are not correctly returning the Physical Material Info when that information is changed at runtime via a Override Physical Material or a Set Physical Material via a Dynamic Material Inst ...

Uncompressed Lightmaps rendering incorrectly in HTML5

UE - Platform - Mobile - Mar 25, 2015

When using uncompressed Lightmaps in HTML5, the lighting is rendered incorrectly. Using (the default) compressed lightmaps, generates no error. Also reproduced in Main Promotable-CL-2487422 (Enscr ...