Scene Color node with UV input on a transparent material renders incorrectly in stereo

UE - Platform - XR - Jan 19, 2021

From Licensee: When we have Instanced Stereo enabled, all our materials that use Scene expression nodes (SceneDepth, SceneColor, etc...), render incorrectly in the right eye. It only happens to the ...

EnumRedirections from a Blueprint enum to a c++ enum does not redirect everything correctly.

UE - CoreTech - Aug 20, 2024

There is an engine bug when using the EnumRedirects feature inside a config file. If we have a Blueprint Enum used in our blueprints, and we want to convert all the Blueprint enum references to a C+ ...

Destructible mesh does not trigger overlap event for objects/pawns that are not moving

UE - Simulation - Physics - Destruction - Dec 12, 2014

DESCRIPTION: When using the generate overlap events for a destructible mesh with Static Mesh or skeletal mesh that is not moving will not generate an overlap event to be triggered. So long as the me ...

Unexpected corrections when sliding against other characters

UE - Gameplay - Player Movement - Oct 19, 2023

We are seeing unexpected movement corrections sometimes when pushing one player character up against another character that isn't moving, or against other static primitives that have round features ...

Crash when Previewing specific LODs within Static Mesh Editor at certain Screen Resolutions

Tools - Oct 27, 2016

A crash occurs when attempting to preview specific LODs when the monitor resolution forces the menu to be expanded when selecting an LOD. This Jira was created from CrashReports submitted by the pu ...

Using a Wait Delay node on Linux causes editor to immediately close without crashing

UE - Platform - Linux - Sep 14, 2015

If a call is made to the blueprint node Wait Delay the editor will immediately close during PIE when the call is made without the crash reporter appearing. The "Wait Delay" node only exists on Linu ...

Niagara color picker user parameter preview no longer updates until confirmation

UE - Niagara - Apr 18, 2025

Starting with UE 5.4, the Color Picker Tool no longer updates preview values in real time for certain editor windows like Niagara when working with User Parameters. This behavior is a regression fr ...

Crash on iOS9 when using Apple's CFNetwork library

UE - Platform - Mobile - Dec 6, 2016

Many clients have hit a crash due to an Apple library using operator delete on a memory block that was not allocated with operator new. This happens with the following callstack on iOS9 in UE4.13 o ...

Users are unable to create projects when the default project location is a networked drive

UE - Editor - Workflow Systems - Oct 23, 2024

There have been multiple reports of this issue, particularly from schools, over the last 10 years:https://forums.unrealengine.com/t/invaild-folder-path-with-network-user-drives/283475https://forums. ...

Crash when returning to viewport from immersive mode with an editor window tabbed beneath

Tools - Mar 2, 2015

When the user enters immersive mode by hitting f11 and then opens the material editor, (which opens tabbed in the editor underneath the immersive display)The engine crashes when hitting attempting t ...