Upgrading a project from a binary Engine to one built from source code does not keep the solution configuration and solution platform settings in Visual Studio.

UE - Foundation - Core - Feb 26, 2015

Upgrading a code project created in a binary Engine version to an Engine built from source code results in the solution configuration and solution platform in Visual Studio being set to Debug and Wi ...

Placing a call to spawn a custom Actor in the game mode constructor instead of BeginPlay causes Editor to Crash

UE - Gameplay - Mar 1, 2016

[Link Removed] In XCode, place a call to spawn a custom Actor in the game mode constructor instead of BeginPlay. This apparently causes the editor to get into an endless crash loop unless the Bui ...

Debug symbols are required for the Shipping packaging configuration

Tools - Feb 11, 2016

If the engine is installed without the Debug Symbols, packaging for Shipping will fail due to the missing files. While I believe this is expected for Development, it shouldn't occur with shipping. ...

Expandable Area widget appears to create extra widgets when being copied and pasted

UE - Editor - UI Systems - Apr 27, 2016

Expandable Area widget appears to create extra widgets when being copied and pasted. These widget appear to be ghost widgets of the original children. If the new unwanted button is selected or delet ...

Nested comments are not parsed correctly by UHT when a second UClass is declared

UE - Foundation - Cpp Tools - UnrealHeaderTool - Mar 14, 2016

Using nested comments when also declaring a second UClass in the same header file causes the UHT to have issues when parsing, resulting in a crash of UHT. ...

Reimport for a single FBX with multiple meshes will add all mesh pieces instead of the single mesh.

Tools - Nov 21, 2016

When using a single FBX with multiple meshes that is imported as individual meshes, if you reimport after updating only a single mesh or a few of them the entirety of FBX will be imported and added ...

Projects that use plugins located outside of either the Engine or Project directories cannot be deployed.

UE - Foundation - Cpp Tools - Plugin System - Dec 5, 2016

Trying to deploy a project that uses an external plugin (not located in either Engine/Plugins or Project/Plugins) will fail. The error message states that it is looking for the plugin to be located ...

Switching to different modes in the Modes panel causes PIE to take input from a connected VR headset for the Y axis camera movement

UE - Platform - XR - Dec 9, 2016

If a VR headset is connected, it will be used for Y axis camera input in PIE if you have switched to and from the Landscape tab in the Modes panel. You can fix this temporarily by reopening the edit ...

Project creation fails for code project named SteamVR

UE - Foundation - Core - Dec 22, 2016

When a code project is given the name SteamVR the project will fail to open with the error message shown in the screenshot. This does not occur for a blueprint project with the same name, blueprint ...

Incorrect shading for SubSurface profile in the Blueprint Viewport.

UE - Graphics Features - Dec 30, 2016

The Subsurface shading looks incorrect in the Blueprint Viewport window. Adjusting the cvar for r.sss.checkerboard from the default value of 2 to 1 looks more correct and a value of 0 switches back ...