Access none after making changes to a blueprint that is referenced in the level blueprint

UE - Gameplay - Blueprint - Jul 19, 2017

References for an actor blueprint appears to becomes invalid in the level blueprint when making changes to the actor's blueprint. This leads to an access none error. It seems that the actor referenc ...

Crash compiling blueprint referenced by Level Sequence while sequence is open

UE - Anim - Sequencer - Jul 19, 2017

Compiling a blueprint that is used in a sequence when the blueprint exists on a sublevel will cause a crash if the level sequence is currently open. ...

ZenGarden or project with MSAA enabled crashes on iPhone 6 and 6+

UE - Platform - Mobile - Jul 19, 2017

Zen Garden crashes on the iPhone 6+ before anything appears onscreen. Occurred on: iPhone 6+ on 10.3.2 Didn't occur on: iPhone 6S on 10.3.2 ...

MaterialInstance ScalarParameter's desc can not upadate.

UE - Rendering Architecture - Materials - Jul 19, 2017

When this problem occurs, "MaterialExpression" is null in FMaterialInstanceParameterDetails::GetParameterExpressionDescription. ...

StrategyGame build failure from with XCode9

UE - Platform - Mobile - Jul 19, 2017

Did not occur when building the 3rd Person Code template from Windows to XCode 9. Also did not occur when building StrategyGame from Windows to XCode 8. This hasn't yet been tested natively on a Ma ...

SunTemple scene does not update properly on iPhone 6S

UE - Platform - Mobile - Jul 18, 2017

On the 6S, the SunTemple scene is almost unresponsive. As the player uses the thumbsticks, the lightmaps from the windows rotate to mach the player's movement; but they are the only thing. This doe ...

Content not opening when trying to run the Paper2D tutorial

Docs - Jul 18, 2017

When I spoke to Mitchell.W about this he mentioned that Paper2D might have changed. ...

Code tutorial asks user to "click on Add Code to Project"

Docs - Jul 18, 2017

This option is no longer listed under the File menu. There is the option for "New C++ Class...". ...

ZenGarden's game sequence doesn't play on device

UE - Platform - Mobile - Jul 18, 2017

Zen Garden loads, then the screen fades in and out as if it's ready to begin play. But when the player taps the screen, the only thing that moves are some lensflares, and the level never transitions ...

SceneTexture:WorldNormal Expression failing to Compile in World Align Blend Function

UE - Graphics Features - Jul 18, 2017

While attempting to modify the World Align Blend function in order to map decals to a surface based on a world vector input, I discovered the function fails to compile while passing the SceneTexture ...