Steam Sessions fails to create when using the Create Session node

Docs - Nov 30, 2021

This is a Regression. 4.26.2 - Binary - no issue creating a session. 4.27.1 - Binary - no issue creating a session if you convert a previously working 4.26.2 project. 4.27.1 - Binary - Fails to c ...

AActor::CheckActorComponents has misleading warning

UE - Gameplay - Components - Apr 24, 2023

There's actually two issues going on here: 1. The REINST references are incorrect, and due to [Link Removed]. 2. Blueprint created components will always have different names between the instance ...

Removing created event from level BP crashes editor if event is tied to object in level

UE - Gameplay - Blueprint - Feb 21, 2015

UPDATE: 2/23/2015 Crash is limited to 4.6.1, does not occur in 4.7 Preview 8 or later builds (CL#2448202). ========================================================== Editor crashes if an event is ...

UInstancedStaticMeshComponentRemoveInstances crashes if called with an empty array

This looks like it can be fixed with an early-out when the passed array of indices is empty. Log:[2024.01.03-16.38.36:091][291]LogOutputDevice: Warning: Script Stack (1 frames) : /Game/BP_Crashy.B ...

Clicking a button in UMG stops all tilt information

UE - Editor - UI Systems - Nov 14, 2014

Tilt information is no longer taken after clicking on a button in UMG. The tilt information goes to all zeros. That is until the user clicks else where at which point the device will then start regi ...

Logic error in TRange::Difference causes crash when you Trim and Preserve Left/Right and unbounded Attach section in the sequencer

UE - Anim - Sequencer - Aug 1, 2024

TRange::Difference function does not handle bounds correctly, causes crash in the sequencer when "Trim And Preserve Left/Right" is used in the user's example project. User provided a potential fix: ...

Duplicate .so files in GoogleVR.

UE - Platform - XR - Jun 2, 2017

A licensee recently pointed out that there are now several GoogleVR lib files in 4.16 that are present in the Engine twice due to some of them being copied into a subdirectory. For example, , in 4.1 ...

Stencil that has been marked with ResponsiveAA is cleared by DistortionPass

UE - Graphics Features - Dec 14, 2021

From UDN: When an object with ResponsiveAA enabled is in the screen and then an object with Distortion enabled comes into the screen, ResponsiveAA does not work. ​ I guess this is because the Ste ...

Volumetric Lightmaps Persist When Opening Different Level

UE - Graphics Features - Lumen - Feb 24, 2020

When moving between levels with built lighting volumetric light maps persists between levels. Workaround: Load the same level twice. Found in 4.24.2 CL#11100242 Reproduced in 4.26 Main CL#11574810 ...

Unable to undo editing enum description

UE - Gameplay - Oct 30, 2019

The user is unable to undo the editing of the enum description. The output log and undo history would confirm that the undo was carried out, however it did not do anything in reality. Resetting the ...