Crash due to D3D device being lost. (Error: 0x887A0006 - 'HUNG')

Rendering - Feb 22, 2017

This JIRA has been made to consolidate all "D3D device being lost. (Error: 0x887A0006 - 'HUNG')" crashes into one. Previous Jira tickets include:UE-37999UE-38818UE-40773UE-40824UE-40807UE-40564UE-4 ...

Rotating a button in UMG and moving it to the edge of the canvas causing incorrect clipping

Tools - UMG - Oct 27, 2014

When rotating a button in the UMG blueprints and then moving through the edge of the canvas panel it causing the button to clip as though it was never rotated. Update: This also happens when placi ...

Touches on windows generate 2 mouse events.

Tools - Slate - Mar 22, 2017

The problem is that windows supplies both a touch event and a mouse event for each touch. The engine then handles touches as mouse input so that UI elements can work correctly on touch platforms. ...

Users project crashes when opening level that loads multiple sub-levels

Core - UObject - May 31, 2017

Users project crashes when opening level that loads multiple sub-levels. Unable to reproduce this in a clean project so the users project is provided though Epic's box account (link is in the repro ...

Thumbnails Get Much Darker With Forward Shading Enabled

Rendering - Feb 24, 2017

The real time thumbnails are much darker when using forward shading in the editor. You have to open or edit an asset so that the thumbnail updates after enabling forward shading to see the effect. A ...

Unable to pass TMap or TSet as a parameter for a UFUNCTION

Core - Mar 2, 2017

Attempting to pass a TMap or TSet into a UFUNCTION as a parameter causes a compilation error. Removing the UFUNCTION declaration works. Error messages:2>D:\Unreal Projects\Main\MyProject14\Source\M ...

Dynamic Directional Shadows do not work with Planar Reflections

Rendering - Aug 9, 2016

Movable/Stationary dynamic shadow distance in the Directional light is not captured in the Planar Reflection. Note that Point and Spot Lights box cast shadows that can be rendered in the reflection ...

A Child PlayerCharacter BP in this project resets its assigned Anim BP to 'None' on restarting the project

Gameplay - Blueprint - Jul 16, 2015

A Child PlayerCharacter BP in this project resets its assigned Anim BP to 'None' on restarting the project. The user reports that the Skeletal Mesh will also occasionally reset to None. I have not b ...

Hot reload fails in 4.16 projects that were upgraded from 4.15.

Core - Hot Reload - May 16, 2017

This issue appears to be a continuation of UE-42205. Hot reloads work successfully in projects that were created in 4.15 or 4.16 and are still using the same Engine version that they were created in ...

TimeRemaining doesn't work when animation has a negative play rate

Anim - Feb 16, 2017

TimeRemaining doesn't work when animation has a negative play rate ...