Altering interface outputs/inputs causes compile errors on blueprints calling interface

UE - Gameplay - Blueprint - Sep 4, 2015

If an interface is called in a blueprint and then altered, the blueprint will receive a compile error until the interface is removed and re-implemented. ...

PrintString in GameMode construction script is never fired (not shown in output log)

UE - Gameplay - Blueprint - Sep 4, 2015

From Joe Conley: I'm not sure exactly when the game mode is spawned in the case of PIE, but hooking up a print string node to the start of the construction script, I never see that printed in the o ...

AddDynamic() causing crash upon opening project

UE - Gameplay - Sep 4, 2015

Using the AddDynamic macro causes a crash upon opening the project. ...

The Tint setting under style for the slider bar in UMG does not appear to have an affect on the color of the widget

UE - Editor - UI Systems - Sep 4, 2015

Changing the Slide bar Color/Slide Handle Color will change the color of the Slider widget. However when changing the "Tint" settings under style, there does not appear to be any color change. ...

Widget components contents appear to be offset when it comes to interacting with them

UE - Editor - UI Systems - Sep 4, 2015

When trying to click on a button or other widget within a 3d widget component the user is not able to do so. There appears to be an offset. ...

Lightmass GI doesn't work with Material-based color changes

UE - Graphics Features - Sep 4, 2015

A licensee is having trouble getting the visual results they want because Lightmass doesn't seem to handle color changes from materials. They are seeing this in 2 cases: (See attached images and tes ...

Setting Auto Possess AI to "Spawned" or "Placed in World or Spawned" will play falling animation

UE - Gameplay - Player Movement - Sep 3, 2015

If the Auto Possess AI is set to Spawned or Placed in World or Spawned then the falling animation will play in the blueprint viewport. ...

Controller::GetPawn() returns NULL in 4.9

UE - Gameplay - Sep 3, 2015

Making a call to GetPawn in an AIController class will return NULL which will crash when that return value is used. This is a regression as the call is made successfully in 4.8.3. Working CL: Work ...

Set Relative Location on components does not replicate to clients

UE - Networking - Sep 2, 2015

Set Relative Location on components does not replicate to clients. Reproduced in 4.8.3 binary, 4.9.0 binary, and Main (CL 2676715) ...

Using a discreet graphics card on a laptop causes context menus to duplicate

UE - Editor - UI Systems - Slate - Sep 2, 2015

Context menus in the editor (such as right-clicking in the Content Browser) will cause duplicate menus to appear when you hover over a section that makes an extra menu appear. Note: This has only b ...