Adding a UMG widget to the viewport twice results in a crash.

UE - Editor - UI Systems - Sep 8, 2015

Attempting to add the same widget to the viewport twice will result in an assertion and crash. ...

Pawns spawning outside of map in Turn Based Strategy example

Docs - Samples - Sep 8, 2015

In the Turn Based Strategy example from Learn tab, pressing PIE causes several pawns to appear far above and away from the intended floor tiles. ...

Blueprint based on custom Vehicle class can't be edited after closing/opening the editor

UE - Gameplay - Blueprint - Sep 8, 2015

If a custom class named Vehicle is used as the base of a blueprint, closing and reopening the editor prevents the blueprint from being opened. The editor reports that the derived class is invalid. ...

Framing an object after locking a camera in matinee closes the editor.

Tools - Sep 4, 2015

After creating a matinee actor and adding a camera group, I lock the camera group. Then I go back to the viewport and select a mesh in the scene. Pressing F to frame that object closes the editor wi ...

Adding a hole to landscape and previewing in OpenGL ES2(Mobile) Crashes UE4

UE - Platform - Mobile - Sep 4, 2015

Making a hole in a landscape and viewing in mobile preview using OpenGL ES2(Mobile) and stopping preview crashes editor. ...

DrawMaterial() Function not Rendering Translucent Material to HUD

UE - Graphics Features - Sep 4, 2015

After creating a new HUD blueprint class and calling it to render a translucent material, the material does not render at all. This is not the case with any other Blend Mode when called to render to ...

Lightmass Build Hanging at Specific Percentages

UE - Graphics Features - Sep 4, 2015

Lighting will build indefinitely in certain circumstances and can be verified in Swarm Agent that it will continue to process the maps even though the log shows it has completed. This is happening i ...

Landscape Grass Type will not build with static lighting leaving 'Lighting needs to be rebuilt warning.'

UE - World Creation - Worldbuilding Tools - Foliage - Sep 3, 2015

When using the Landscape Grass Type and using a Static or Stationary light will throw the 'Lighting needs to be rebuilt' warning. ...

Project crashes without callstack when rotating an actor that has been made up of other actors

UE - Gameplay - Blueprint - Sep 3, 2015

User Creates an actor with a static mesh and then adds more components to it. The user then separates these components from the actor transforms them and then adds them back to the original actor. U ...

When creating an extra return node inside of a function the return values should be duplicated across both nodes

UE - Gameplay - Blueprint - Sep 3, 2015

When a user creates a second return node (Right click> "Return node") inside of a function the second return node will duplicate any return values that are added while it is in existence. ...