'recompileshaders changed' doesn't work

UE - Graphics Features - May 7, 2021

The issue is already fixed in UE5 by CL 14368553. This Jira is created for cherrypick into UE4 ...

"Assign" node can cause a crash when placed in a graph

UE - Gameplay - Blueprint Compiler - Apr 26, 2022

This may only happen with upgraded projects that went from 4.27 up to 5.0.1 ...

open asset in editor crash (Objects have the same fully qualified name but different paths)

UE - Gameplay - Blueprint Compiler - Sep 15, 2022

in 4.27 open this asset could not crash ,but 5.0.2 could get crashed ...

Usd wrapper uses TCHAR_TO_ANSI conversions causing path issues with basic extended ASCII character set

UE - Editor - Content Pipeline - USD - Jun 12, 2024

It seems that a simple change from TCHAR_TO_ANSI to TCHAR_TO_UTF8 in UE::FUsdStage OpenStageImpl() fixes the issue. ...

[AI] Navigation System can be constructed in situations where the NavigationObjectRepository subsystem is not valid

UE - AI - Navigation - Feb 7, 2025

Investigate and fix all calls where the Navigation System is constructed without the NavigationObjectRepository subsystem being valid.  ...

Cook errors with landscape cross-level spline meshes

UE - LD & Modeling - Terrain - Landscape - Dec 18, 2015

Licensee is using a modified engine but has a workaround, we need to verify that the same doesn't happen in vanilla UE4 and fix if it does. ...

T_Wood_Pine_D Asset has Offset Alpha Channel

Docs - Samples - Sep 12, 2016

The alpha channel seems to be offset in the x and y by 1024 pixels this has been fixed and attached for analysis. ...

Some Niagara Fluid systems are not visible in a packaged project

UE - Niagara - Jun 7, 2022

Previously packaging caused a crash with this system. This was fixed, but now the system is no longer visible when packaged. ...

InstancedStaticMeshComponent causes crash in editor compiled with ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES set to zero

UE - Graphics Features - Nov 11, 2022

ALLOW_DITHERED_LOD_FOR_INSTANCED_STATIC_MESHES works without crashing in ue4.27. It appears that this code path is not maintained in ue5. ...

Route gamepad to second window setting is broken

UE - Gameplay - Input - Nov 11, 2022

The RemapControllerInput function call likely needs to be added back to the game viewport client as a fix.  ...