Material Expression Reference Page: "Inputs" and "Outputs" definitions reversed from illustration

On the Material Expression Reference Page, located here:https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/ExpressionReference/index.html Material Expressions has an image numbered ...

Connection to dedicated server no longer works on iOS devices

UE - Networking - Oct 11, 2019

"Looks like the cause of this is commit fb473a7 ( https://github.com/EpicGames/UnrealEngine/commit/fb473a7678c3669bebe0431dacaf52bcf8dee47f#diff-e6f727710008f31c0ece339b76041d2e ) included in v4.23. ...

Setting a delegate in code as constant does not compile

Docs - Aug 28, 2015

Using the wiki documentation to setup a Dynamic Delegate in code gives compile errors that the DelegateName doesn't exist. Adding the open/close braces ("[" and "]") give a different compile error ...

SSH remote toolchain does not consider load of target Mac

UE - Platform - Mobile - Sep 5, 2017

As mentioned here: https://udn.unrealengine.com/questions/389863/compiling-on-mac-through-visual-studio-on-pc-is-ha.html The SSH remote toolchain does not consider how many other users are connect ...

Switching project monitor with shift+win+arrow keys

UE - Rendering Architecture - RHI - Apr 24, 2025

Using Windows+Shift+Arrow keys to move the application window in Windowed Fullscreen from a low resolution monitor to a high resolution monitor does not resize the application window on a Windows 10 ...

Unable to run UE4Editor using the -SM4 commandline argument

UE - Graphics Features - Nov 16, 2018

Attempting to run the UE4 Editor using SM4 causes an error to popup stating that "A Feature Level 5 video card is required to run to Editor. AvailableFeatureLevel = SM4, ShaderPlatform = PCD3D_SM4" ...

Startup movies playing in windowed mode when game settings are set to fullscreen

Tools - Jan 22, 2015

When launching a game that is set to play in fullscreen, the game does not enter fullscreen mode until after the intro movies play. This was also mentioned on UDN: https://udn.unrealengine.com/ques ...

Translucent Unlit Materials render at incorrect Z depths depending on camera

UE - Graphics Features - Sep 15, 2014

Sprites which are layerd on top of one another in a tight pack and have a material set to TranslucentUnlitSprite Material will disappear while moving the camera above and below the editor's 0 grid. ...

Streaming of array textures with mips results in nearest mips being black

UE - Graphics Features - Jan 20, 2020

The issue is discussed in this UDN:https://udn.unrealengine.com/questions/544210/crash-starting-up-in.html Key quote from UDN thread is:"Also, having made a texture array with 190 entries, it seems ...

MultiplayerShootout Main Menu Bug

Docs - Samples - Jul 27, 2015

Download and run the MultiplayerShootout project. Play in editor. Press q to get to the options menu and select leave game. Observe the black screen in the editor viewport. Also notice the stop and ...