Preprocessor checks for VS 2017 version of MSC do not look for the latest version of MSC

UE - Foundation - Core - May 8, 2018

There are some pre-processor checks in the Engine code that look for the version of MSC that was introduced with Visual Studio 2017 (eg. #if _MSC_VER == 1900). However, this does not take into consi ...

Volumetric Lightmaps Do Not Sample Correctly Under Landscapes

UE - Graphics Features - May 11, 2018

Per Licensee:  I noticed that the Volumetric Lightmap does not build at correct density if an object is under the level of the terrain. Is this a feature or a bug? I'm creating a under-terrain dung ...

Can't disable collision on landscapes

UE - LD & Modeling - Terrain - Landscape - May 14, 2018

Disabling collision on a Landscape doesn't work when using the Collision Preset 'NoCollision'. The Landscape still generates collision on Static and Skeletal meshes. ...

Crash in UHierarchicalInstancedStaticMeshComponent::GetOverlappingSphereCount

UE - World Creation - Worldbuilding Tools - Foliage - May 15, 2018

A licensee has reported a regression from 4.18.3 to 4.19.2 that is causing crashes to occur in their project. The crash occurs when walking onto their foliage in a packaged game. This does not happe ...

Crash in editor after disabling AISystem in Worldsettings

UE - AI - May 16, 2018

After disabling the World Option bEnableAISystem, clicking with the right mouse button on the asset browers (in an empty place) casues the editor to crash. ...

Assertion failed: UnscaledViewRect.Width() > 0

Tools - May 23, 2018

Crash when using new FCanvasDrawer Licencee notes that crash does not occur if "new FCanvasDrawer" is commented out. ...

Cannot run a packaged project if the project uses a Built-In Editor plugin and the project was packaged with the Build setting set to "Never"

UE - Foundation - Core - May 24, 2018

This may be related to [Link Removed]. A packaged project will fail to run successfully if the project includes a Built-In Editor plugin and the project was packaged with the Build option set to "N ...

Delay nodes occasionally don't fire the "Completed" output in a nativized build.

UE - Gameplay - Blueprint - Jun 13, 2018

This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...

GetWorldTimerManager() function can crash if called when no valid World is present

UE - Gameplay - Jun 13, 2018

A crash can occur within GetWorldTimerManager() if the function is called when no valid World is present. It is not necessarily intuitive to have to make sure that GetWorld() will not return a nullp ...

TextScale parameter doesn't change size of text in AddOnScreenDebugMessage()

UE - Foundation - Core - Jun 16, 2018

The textScale parameter in AddOnScreenDebugMessage does not change the scale of the debug message. ...