Message box cannot be closed after accessing the home screen on iOS

Platform - Mobile - Mar 15, 2016

Returning to home screen with message box displayed prevents the message box from being closed upon returning to the game ...

Changes in Blueprint Properties not Updated in placed Instance

Gameplay - Blueprint - May 16, 2016

When changing some properties in a Blueprint, the changes are not reflected in placed instances of the Blueprint. I've included repro steps from the licensee who reported this. I verified these step ...

If an ensure() fails within an automated test, the test can still show a positive result.

Automation - Aug 4, 2015

If an ensure() fails within an automated test, the test can still show a successful result. ...

Fbx importer crash when importing one "line" triangle

Tools - May 23, 2016

When we have a mesh containing one triangle with two vertex at the same location the importer is crashing. It crash because rejecting the line triangle result with a mesh containing no vertex which ...

PhysicsConstraintComponent not editable on instances.

Physics - May 25, 2016

When adding a PhysicsConstraintComponent to a class, it can be properly edited in the Blueprint editor. However, if trying to manipulate it via the instance editor, it is "locked down" ...

Matinee: Animation keyframes cannot be added after opening a new asset editor in the same window

Tools - May 31, 2016

When opening a new asset editor in the same window as matinee, the 'Add Key' button for animation tracks will no longer function. This is due to FSlateApplication::ActiveTopLevelWindow being reset a ...

Toggling SetSimulatePhysics state on a Primitive component with a child PrimitiveComponent leaks PxShapes

Physics - May 23, 2016

FBodyInstance::Weld did not check to see whether or not child components were already welded to a parent. This meant that whenever Weld was called, ShapeToBodiesMap would continue to grow in size, e ...

All Classes Tab of Modes Panel Not Updating Automatically

Tools - Jun 2, 2016

Blueprints are not appearing in the All Classes tab of the modes panel after being loaded until the tab is switched. Found in 4.12 binary. Reproduced in 4.11.2 binary and Main CL 2994701. ...

AssetImportData does not get deserialized on a UTexture when loaded as part of a streaming level

Core - Nov 25, 2015

The repro case is to create a material with a texture (texture T), apply it to some object, like a basic cube. Save out this level, level A. Create a new level, and add level A as a sublevel, and sa ...

Copying a Static Mesh actor from the level and pasting it into a Blueprint as a component does not retain any of the values of the copied actor

Gameplay - Blueprint - Aug 4, 2015

Copying a Static Mesh actor from the level and pasting it into a Blueprint as a component does not retain any of the values of the copied actor. Reproduced in 4.7.6 binary, 4.9 Release (//depot/UE4 ...