Is Valid is true in PIE but prints false in package build

UE - Editor - UI Systems - May 18, 2017

When using the IsValid node inside of a Widget blueprint with the Widget as the selected asset, the string will print as true in the Editor, but prints as false in the packaged build of the game. ...

UKismetStringLibrary::CullArray is poorly implemented

UE - Gameplay - Blueprint - May 18, 2017

FString::CullArray is a static function, but the BP version is still taking a string instance to operate on (which it won't mutate as the function is static), and takes the array as an in/out argume ...

Code Delegate behavior is not consistent based on where the delegate is created

UE - Gameplay - Blueprint - May 22, 2017

When a delegate is created in a component class, adding the component to a blueprint will show the delegate in the Event section of the Details panel when the component is selected. This allows an ...

Unable to add/compile code for Automation Test

UE - Automation Test - May 22, 2017

When following the documentation on setting up automation tests, the sample provided for "Simple Tests" does not successfully compile. One of two compiles errors is given based on the TFlag used A ...

Inconsistency in clickable widgets when a selection is held down

UE - Editor - UI Systems - May 24, 2017

Inconsistency in clickable widgets when a selection is held down . In this example the button widget reacts only once, while the combo box appears to repeatedly fire while the enter key is held ...

Component delegate losses binding after level change

UE - Gameplay - May 30, 2017

When a component delegate is called in a blueprint as an event, changing levels causes the delegate to loose binding and not be called. ...

Flickering When adding a moving texture to the stereo layer and holding the teleport button in the VR template

UE - Platform - XR - Jun 1, 2017

Flickering When adding a moving texture to the stereo layer and holding the teleport button in the VR template. An additional note, is that the FPS appears to shoot up above 90 (up to around 120+ fp ...

Crash When Selecting Actor in the World Outliner That is Using ColorGradingMode

Tools - Jun 2, 2017

When selecting an actor in the World Outliner that is using the ColorGradingMode specifier (ColorGradingMode = "saturation"), the editor crashes. This did not occur in 4.15.3. This is a regression ...

Editor Crashes When Attempting to Maximize Standalone Window While a Startup Movie is Playing

Tools - Jun 2, 2017

The editor is crashing when clicking the Maximize button on a standalone window when a startup movie is playing. ...

SplineIK requires -90 degree rotation when duplicating motion from it's own skeleton

OLD - Anim - Jun 2, 2017

SplineIK requires -90 degree rotation when duplicating motion from it's own skeleton ...