Engine Crashes When Building Lighting if Precomputed Visibility Aggressiveness is set to VIS Max

UE - Graphics Features - Nov 30, 2017

The engine crashes when building lighting if World Settings >> Precomputed Visibility >> Visibility Aggressiveness is set to "VIS Max." A Fatal Error message sometimes appears (screen shot attached) ...

Reroute Node Breaks Link in Material Editor When Used with Material Function

UE - Rendering Architecture - Materials - Nov 30, 2017

Adding a reroute node in the material editor between a texture object and a material function breaks the link and the texture object is no longer applied. Adding a reroute node into a spline that d ...

Paint Mode button options disappear when toggling on "Use Small Tool Bar Icons" in the User Interface

Tools - Nov 30, 2017

When toggling on the "Use Small Tool Bar Icons" under the User Interface settings, the button options that sit directly under the Colors, Weights, and Textures options in Paint mode disappear. Thi ...

RegisterComponentWithWorld does not check to see if Children of registered component have bAutoRegister set to false

UE - Gameplay - Components - Nov 30, 2017

UActorComponent::RegisterComponentWithWorld() does not have a check for bAutoRegister near the end of the function, where it registers the component's children if it was created by the Construction ...

Cannot specify custom window positions in "windowed mode" for packaged games

Tools - Nov 30, 2017

There is an issue where you cannot specify a specific location for a windowed packaged game when using a command line to open the project, the project will move to that position for a brief moment b ...

Child Actor Component outputs error when child class is set to empty using blutility

UE - Gameplay - Blueprint - Nov 30, 2017

Child Actor Component outputs error when child class is set to empty using blutility I attached repro proj. ...

ARKit portrait image aspect ratio incorrect on iPhone 6s,7, probably all phones.

UE - Platform - XR - Nov 29, 2017

As described in this UDN thread, the iPhone 7 manifests incorrect image aspect ratiohttps://udn.unrealengine.com/questions/403841/ios-arkit-portrait-mode-stretching-on-iphone-7.html [Link Removed] ...

Crash opening Child/Grandchild Blueprint after updating to 4.18

UE - Gameplay - Blueprint - Nov 29, 2017

From this UDN: https://answers.unrealengine.com/questions/718928/4180-editor-crash-while-opening-child-blueprint.html Crash occurs when opening child (or in the repro case, grandchild) blueprints a ...

Instanced Properties create temporary references on child objects in Blueprints

UE - Gameplay - Blueprint - Nov 29, 2017

When an object whose class has the EditInlineNew specifier is added to an instanced property, any children of the blueprint will have a reference to the same object that was created for the instance ...

Blueprint interface function with the same name as a node gets fused

UE - Gameplay - Blueprint - Nov 29, 2017

Creating a Blueprint interface and changing its function name causes a crash when using the undo button to change the name back. ...