r.SupportPointLightWholeSceneShadows Set to False Causes Crash When Trying to Place a PointLight

UE - Graphics Features - Jul 25, 2018

If you disable Support PointLightWholeSceneShadows and try to place a point light in a level the editor will crash.  Current work around is put shadows to low from engine scalability settings. Wor ...

Shader Model 5 and Tessellation causes unintended effects on Linux

UE - Platform - Linux - Jul 6, 2016

Using Shader Model 5 and tessellation on Linux gives strange results that are not present when used on Windows ex: 1) When using Shader Model 5 on Linux, turning on Translucent blend mode and Tesse ...

Mac Safari HTML5 Launch On - Unresponsive WASD controls while in Full Screen

UE - Platform - Mobile - Sep 19, 2016

I was testing launch on test for mac and wanted to see if the full screen works properly as there were issues with that before. I discovered that after selecting full screen, I was not able to move ...

Attempting to Change Global Variable to Local Variable in a Function Containing a Timer Causes Compiler Error

UE - Gameplay - Blueprint - Sep 14, 2016

When attempting to replace a global float variable with a local float variable that is connected to a Timer node in a blueprint function, an error will appear after trying to compile. This does not ...

Ctrl + z still active in PIE

Tools - Jan 20, 2016

Users can select ctrl + z while playing in Editor causing PIE to stop and undo last change, often freezing the editor temporarily, and sometimes causing a crash. Workaround: This does not occur if ...

Crash When Executing RestartLevel When GameInstance Contains a Reference to an Actor in a Streamed Level That is Loaded But Not Visible

UE - Gameplay - Nov 29, 2016

The editor is crashing when attempting to use the RestartLevel command if the GameInstance contains a reference to an actor that is in a streaming level. The streaming level must be loaded, but not ...

PhysX errors when packaging for x86

UE - Platform - Mobile - Oct 27, 2016

Packaging for x86 in ETC1 will generate PhysX errors and cause the package to fail. The following error will occur multiple times throughout the package:UATHelper: Packaging (Android (ETC1)): Unrea ...

Using a Custom Game State Disables Tick for Other Blueprints

UE - Gameplay - Blueprint - Jan 5, 2017

Using a game mode that contains a custom game state rather than the default seems to be disabling tick for other blueprints such as characters and actors. Whenever the project is using a custom gam ...

Broken references after renaming template default folders

Tools - Jan 17, 2017

When a template project's default folders are renamed (such as Geometry in the First Person Template), the original folder name is still shown in the content browser. Relaunching the project will s ...

Compiling a project while any editor process is open triggers a hot reload

UE - Foundation - Cpp Tools - Hot Reload - Jan 20, 2017

If you attempt to compile a project while an editor process is running, even if it is of another project entirely, it will hot reload the project instead of doing a normal compile. This can create i ...