Control Rig function nodes cannot have their color changed in 5.3

UE - ACT Character - Control Rig - Oct 5, 2023

VR preview Crashes for the Oculus Rift on 4.8 preview 3

UE - Platform - XR - May 20, 2015

If the User starts up the VR preview mode with an Oculus rift plugged in the editor will crash. ...

Layers render transparent in Material_Advanced 1.3 display in ContentExamples on HD4600

UE - Graphics Features - Nov 1, 2016

Only seen on an Intel HD4600 GPU This is a regression from 4.13 Did not occur on an Intel HD530 GPU ...

Unreal Logo in Display 3.1 Continues to Spin After Button is Turned Off

Docs - Samples - Sep 21, 2016

While writing test cases for the Blueprint Communication Content example, I came across this inconsistency. The logo continues to spin even after the button is no longer active. I expected the logo ...

Reading data back from rendertarget not working on Android opengles 3.x

UE - Platform - Mobile - Aug 7, 2019

From user: "I believe the issue is deal to the implementation of FAndroidOpenGL, there is no overriding of FOpenGL::SupportsMapBuffer(),which always return from the base FOpenGLES2 method and it is ...

Fixing a Blueprint's compilation error after editor reload causes instances to lose transform

UE - Framework - Blueprint - Feb 23, 2023

Saving and reloading a Blueprint instance with a compilation error, a.k.a., "Bad Blueprint" will lead to a transform reset when the Blueprint is successfully recompiled. ...

Bug in StringTemplate.cpp related to modulo operator in MaterialTemplate.ush (code fix provided)

UE - Rendering - Architecture - Materials - Jun 25, 2024

Shader Template files like MaterialTemplate.ush do not submit previous chunks when encountering a `%` character, unless that `%` character is `%s` or `% {...} `. Because the error is happening ...

Enabling MobileHDR on Meta Quest 3 device causes intermittent hang in splash screen

UE - Platform - XR - Feb 2, 2026

Using MobileHDR on an actual MetaQuest device (MQ3 tested) causes an intermittent hang/deadlock in the splash screen. This hang in the splash screen seem to happen maybe 1 in 5 times. The first ti ...