Crash when importing FBX file a second time after an error is given

Tools - Mar 10, 2016

Editor crashes when trying to import a FBX a second time after the FBX failed to import the first time. An image of the error attached below. ...

Instanced subobjects are not always instantiated as expected.

Gameplay - Blueprint - Aug 13, 2015

Instantiation of subobjects does not behave as expected when using the DefaultToInstanced UCLASS specifier. The licensee that reported the issue provided a sample project with some ensures added whe ...

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. ...