Spin Box delta does not appear to affect how the spin box increments through its values when clicking and dragging with the mouse

UE - Editor - UI Systems - May 12, 2017

Spin Box delta does not appear to affect how the spin box increments through its values when clicking and dragging with the mouse. The spin box appears to increment/decrement by more or less dependi ...

Specular reflections break when using Forward Shading

UE - Graphics Features - Sep 3, 2020

Forward Shading under 4.25.3 seems to break something in the Hair shading model. Default Lit seems to behave normally. Reported and tested in 4.25.3(CL 13942748). ...

IOS GPU Hang Error (IOAF code 3) and Crash when rotating to Landscape

UE - Platform - Mobile - Oct 11, 2018

When users rotate to landscape in QAARApp the apple device will encounter a GPU Hang error and crash.Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Err ...

5.5.3 insights crashes when opening .utrace files with "RenderCommands,RDG,RHICommands" channels.

UE - Foundation - Insights - Feb 19, 2025

The customer provided reproduction steps and a trace file that crashes Insights. From the customer: manually placing if (!CurrentGraph) Unknown macro: { return; } nullchecks in RenderGraphInsi ...

Media Player not updating when IMG Media Source files are changed

Media Framework - Aug 20, 2020

Images in a sequence path for an Img Media Source are not updating without restarting the project. Changing the path itself appears to work as expected.  Tested in versions 4.22.3(CL 7053642), 4. ...

Depth Fade Material + Mobile HDR Disabled does not work with OpenGL 3.1 on Oculus Go

UE - Platform - Mobile - Dec 28, 2018

"Depth Fade" material node does not work on Oculus Go with Open GL 3.1 active and Mobile HDR disabled. Seems very similar to [Link Removed] however disabling Separate Translucency or calling  r.M ...

With Accurate Velocities from Vertex Deformation and Instanced Stereo enabled anti-aliasing does not affect the right eye

UE - Platform - XR - Jul 8, 2016

KevinR: Make sure you are using Temporal AA (TXAA), and I was using SteamVR/Vive With Accurate Velocities from Vertex Deformation and Instanced Stereo enabled anti-aliasing does not affect the righ ...

DDX and DDY no longer work properly close to the camera in 4.21 on Android in OpenGL ES 3.1

UE - Platform - Mobile - Mar 29, 2019

DDX and DDY no longer work properly close to the camera in 4.21 on Android in OpenGL ES 3.1.  Worked in 4.20, no longer works in 4.21 or 4.22.  Originally reported as Oculus Quest specific, but repr ...

When OpenGL ES 3.1 is enabled for Android build in Handheld AR Template, camera inverts colors

UE - Platform - XR - Mar 26, 2018

When OpenGL ES 3.1 is enabled in Android Build settings, device prompts user to choose to "Allow ARInvertColor to take pictures and record video". If allowed, colors are inverted by the camera. If ...

Changing the “show mouse cursor” variable of PlayerController with a mouse button input does not work the same as with a keyboard input

UE - Editor - UI Systems - Slate - Oct 6, 2020

Using the mouse input to show the mouse cursor acts like an Alt+Tab. When clicking the mouse input again to no longer show the cursor, the camera controls stop at the edge of the screen. Reported i ...