Casting to ActorComponentOwner inside of nested Inline instanciated Blueprints owned by ActorComponentOwner disappear after Editor restart.

UE - Gameplay - Blueprint - May 15, 2018

A set of objects which can be instantiated Inline in the Editor that contain an array of References to their children that have nested Blueprint objects inheriting from a Native Base Class can cause ...

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 ...

Missing some UBX collisions after imported from FBX

Tools - May 15, 2018

If move those UBX collision closer to the visual mesh, it kind could fix the problem, but still wondering if it's a bug or limitation; what's the reason behind it and how artist could avoid those pr ...

Widget clips incorrectly when added at runtime

UE - Editor - UI Systems - May 14, 2018

When adding a widget at runtime the widget it appears to clip in correctly. If the widget is more than half way off the screen, the entire widget disappears. ...

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. ...

Launch URL places http:// before the given string on Android, causing some commands to fail

UE - Platform - Mobile - May 14, 2018

Attempting to launch URLs on Android causes http:// to be placed before the string that is given. This causes issues when using commands such as mailto: and tel: which do not work properly when this ...

Socket Snapping in level editor no longer works

Tools - May 14, 2018

The Socket Snapping level editor action no longer works in 4.19/4.20, it worked in 4.18 but regressed. It still attaches but it's set to maintain it's world position, so it doesn't actually snap. T ...

Framerate drops when using SceneCaptureComponents with a RenderTarget in VR

UE - Platform - XR - May 14, 2018

Using SceneCapture in packaged VR projects causes poor performance. Also observed with SceneCaptureCube Does not occur in 4.18 ...

MakeNoise detected one every two calls

UE - AI - May 14, 2018

Licensee is using the Sense Hearing of the AIPerceptionSystem. When using the GamePlay Debugger they notice that one call of MakeNoise out of every two seems ignored by the AIPerception. ...

Changing widget names in the designer tab does not take into account spaces only changes

UE - Editor - UI Systems - May 14, 2018

Changing the name of a widget so remove spaces from the name appears to have no effect. If the only changes to a widget's name in the designer tab are to remove/add spaces, the changes will not take ...