Surface Material's AO will show through a Decal when static lighting is disabled

UE - Rendering Architecture - Materials - May 31, 2023

A surface's Ambient Occlusion will appear through a decal when static lighting is disabled in project settings. Regression tested against //UE5/Release-5.0 CL 20979098 //UE5/Release-5.1 CL 23901901 ...

values for pinch input produce very different results for same area on android device

UE - Platform - Mobile - Oct 13, 2017

Values for pinch input produce very different results for the same area on an android device. values can range from 0 to 1, or end up in the thousands, despite the pinch distance being the same. It ...

Adjusting slider in Blend Space Animation causes editor to Crash

OLD - Anim - Oct 28, 2014

UPDATE: Date: 2/5/2015 Likely an instance of the same crash: [Link Removed] CrashReporter Bugg (Crash List): [Link Removed] When updating a project from UE4.4.3 to UE4.5.1 editor crashes when adju ...

Unable to Expand the Class Dialog Menu on Mac when Creating New Blueprint Class

UE - Platform - Apple - Apr 24, 2015

Unable to reproduce internally. The user is unable to expand the class dialog menu when creating a new blueprint class on his Mac. He provides a video showing the issue he is experiencing in 4.7.5 ...

Tilemap using Masked Lit Sprite Material not Rendering in Standalone mode

UE - Gameplay - Paper2D - Jan 26, 2016

When using a Tilemap with a Masked Lit Sprite Material, the tilemap will not render while in Standalone. In the test project, the Paper2D Blueprint character was switched to Masked Lit Sprite Materi ...

Ensure and crash when using voice chat during seamless travel

UE - Online - Nov 10, 2022

If an instance starts seamlessly travelling while talking in the session's voice chat, the ensure in FScene::Release will be hit, often with the instance then crashing soon after (such as in FAudioD ...

Ribbon Emitters Do Not Properly Kill Trails On Source Loss

UE - Graphics Features - Nov 18, 2016

"Dead Trail on source lost" doesn't seem to work consistently. This is apparent when the source emitter's duration is longer than the particles being emitted. This bug also occurs if there is vary ...

Raytracing shadows and lighting not showing in rendertarget

UE - Graphics Features - Lumen - Dec 19, 2019

Raytracing shadows and light reflections not appearing in render target Tested in: 4.22.3 CL#7053642 4.23.1 CL#9631420 4.25 CL#10730208 ...

Cannot open Anim Notify Manager

OLD - Anim - Jan 3, 2017

Cannot open Anim Notify Manager. Right Click>Manage Notifies doesn't open it and the Manager no longer appears in the Window Menu. Regression: YES Broken: 3224400 (4.14.1) Worked: 3172292 (4. ...

Niagara Particles in Mesh Shape Don't Render in Scene or Editor Preview

UE - Niagara - Dec 19, 2019

Niagara particles aren't rendered in the Niagara Editor Preview or the scene when an emitter is in it. Found in 4.24.1 CL#10756747 Reproduced in 4.25 Main CL#10808197 ...