Unable to connect to Pixel Streaming when using FireFox

PixelStreaming - Sep 11, 2019

It appears that Pixel streaming does not currently work with the Mozilla Firefox web browser Docs link: https://docs.unrealengine.com/en-US/Platforms/PixelStreaming/PixelStreamingIntro/index.html ...

Vertex color does not work on Skeletal Mesh with Nanite enabled

UE - Rendering - Features - Nanite - Oct 7, 2025

Nanite enabled skeletal meshes don't work with materials containing a vertex color node. The vertex color material does work for non-Nanite skeletal meshes and Nanite-enabled static meshes. ...

Landscape Grass Type will not build with static lighting leaving 'Lighting needs to be rebuilt warning.'

UE - World Creation - Worldbuilding Tools - Foliage - Sep 3, 2015

When using the Landscape Grass Type and using a Static or Stationary light will throw the 'Lighting needs to be rebuilt' warning. ...

Lightmaps not carrying over with 'Save Current As'

UE - Graphics Features - Lumen - Jul 17, 2020

I can reproduce it, other developers reported to me too.  Not a problem in 4.22 ...

Volumetric fog black and not updating with real-time capture skylight

UE - Rendering - Architecture - Oct 20, 2023

It looks like the skylight is not updating the CPU side SH values when Real Time Capture is enabled, and thus old/empty values are sent to the fog. ...

BP - Nativized builds will incur data loss in a Blueprint class that contains more than one ChildActor component and for which each had its child actor class set in the Details tab before being renamed away from "ChildActor" in the component editor tree.

UE - Gameplay - Blueprint - Jan 27, 2020

Child actor component templates, when nativized, end up being owned by the converted Blueprint class object, rather than the child actor component template. Furthermore, we don't regenerate the chil ...

Crash occurs running SunTemple on Nexus 6p in Vulkan mode

UE - Platform - Mobile - Jan 14, 2017

Testing Vulkan DLS and hit this crash when running the app on Nexus 6p. This crash does not reproduce on Nexus5_4012_Adreno 330 ...

Vertex Animation anti-aliasing improvement

UE - Graphics Features - Jun 2, 2015

A licensee has reported that their vertex animations are leaving a lot of be desired with anti-aliasing. Specifically using vertex animated meshes can leave aliasing remnants behind while it's shift ...

Dismissing "Place phone into daydream headset" leaves app at black screen

UE - Platform - XR - Jun 29, 2017

Currently experiencing an issue when re-entering Google Daydream game after exiting the Daydream setup (place your phone in headset) screen by pressing the x in the top left corner of the screen. Wh ...

10 Pixels Added to Width & Height of Floating Editor Windows Each Time Project is Reopened

Tools - Dec 14, 2015

Each time the editor opens a project, the INIalt text file changes, adding 10 pixels to the width and height of floating sub windows, thus negating the usefulness of the "Save Layout" feature. *Obs ...