GPU particles disabled on Quest

UE - Niagara - Feb 9, 2024

GPU particles were disabled on Quest 1 due to a compute issue. We need to validate / fix issues for Quest 2 / Quest 3. Reported in [Link Removed] ...

Poor Vulkan RHIThread performance in Development builds on some Android

UE - Platform - Mobile - Dec 10, 2024

Community-attempted workaround received in [Link Removed] Correct fix submitted to 5.6 FNMain in [Link Removed] which needs integrating into 5.5.3. ...

Cannot Preview a Node in a UI Material

UE - Rendering Architecture - Materials - Mar 18, 2016

Previewing a Node in a UI Material will not show anything, or will remain showing what is placed in Final Color. This issue appears to be fixed in Dev-Main as of CL-2914624. ...

Import options broken when importing bones-only fbx animation

OLD - Anim - Jun 19, 2015

This bug is being entered for integration purposes. This is already fixed in 4.9 Main with one of Lina's changes (CL:2584657). Wanted to try and get this into a 4.8 hotfix ...

When playing matinee, scrubbing can cause sound to keep playing when it isn't triggered

UE - Audio - May 31, 2016

When playing matinee, scrubbing can cause sound to keep playing when it isn't triggered Note: This was entered as a bug to re-work the fix from the pull request found here: [Link Removed] ...

Cannot manipulate Skeletal Mesh Components with Transform Gizmo in Blueprints

UE - Gameplay - Blueprint - May 6, 2016

Cannot manipulate Skeletal Mesh Components with Transform Gizmo in Blueprints This DOES NOT occur in 4.11 or 4.13. Fix from 4.13 will need integration to 4.12. ...

[CrashReport] D3D 'Hung' crash - FD3D11DynamicRHI::ReadSurfaceDataNoMSAARaw

UE - Graphics Features - Jan 4, 2017

This is a frequent D3D Hung crash, similar to [Link Removed] and [Link Removed]. A potential fix for the other crashes was released in 4.14.2, but this crash is still occurring on that release. ...

UMG element clipping does not work on Galaxy S8 (Mali)

UE - Platform - Mobile - Mar 13, 2018

UMG clipping requires stencil. Seems like we don't request stencil when creating backbuffer Changing const int EGLMinStencilBits = 0; to const int EGLMinStencilBits = 8; fixes this. ...

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled

UE - Niagara - Dec 27, 2018

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

PlanarReflectionCaptureComponent preview crash

UE - Graphics Features - Mar 15, 2019

Toggling the Preview Plane boolean for the Planar Reflection Capture Component causes the editor to crash. Tested in 4.22 (CL - 5365847), 4.23 (CL - 5408081) ...