The 'Add New Key' button does not function within the Actor Sequence Editor within an object that has the Actor Sequence Component.

Sequencer - Jul 26, 2018

The Actor Sequencer Timeline appears to not be able to correctly recognize the variables manipulated within the viewport. Thus, when attempting to add a keyframe after moving a component, within the ...

When asynchronously loading levels using the "Async Load Primary Asset" node, the dirty flag of the loaded level becomes Enable

Gameplay - Jul 26, 2018

Asynchronously loading a level that has one or more Actors using the "Async Load Primary Asset" node will enable dirty grug for that level asset. The cause is a modified code(CL-3764602) for the UE ...

ARCore Non-AR Camera inherits AR Camera rotation

Virtual Reality - Jul 25, 2018

When transitioning from AR map/pawn to Non-AR map/pawn the direction the phone is facing is applied to Non-AR pawn. Only occurring on Android/ARCore Also tested in Main CL #4229747 Tested with Pi ...

Toggling off the Gameplay Filter Tag causes all Content assets to be shown

Tools - Jul 24, 2018

Toggling off the Gameplay Filter Tag causes all Content assets to be shown in the Content Browser. This reported and tested in 4.19.2 (CL-4033788) and tested in 4.20 (CL-4212847) and Main 4.21 (CL- ...

Crash when using StepToNextShot / PreviousShot with sequencer

Sequencer - Jul 24, 2018

A crash occurs when you press the Shift key + [.] (Period) key after double-clicking on one of the arranged level sequences in the master sequence. The cause is ActiveTemplateIDs of FSequencer. The ...

Editor Preference settings get wrongly saved within project instead of editor

Tools - Jul 23, 2018

Various settings within the Editor Preferences window get saved within the project instead of the Editor. If someone were to heavily modify their Editor Preferences they would have to set it up agai ...

Incorrect box collision on negatively scaled mesh

Physics - Jul 23, 2018

If you have a mesh with a rotated box in its simple collision primitives, that box won't be in the correct position if you scale the mesh by -1. This issue was reported in 4.20 (CL-4212847) and rep ...

Cannot debug projects in the Editor if it uses a unique target build environment

DevTools - Jul 20, 2018

It is not possible to debug a project in the Editor if the project's Editor target uses a unique target build environment. When attempting to debug, Visual Studio looks for UE4Editor.exe, when it sh ...

Animation FBX export is broken for ThirdPersonCharacter

Tools - Jul 20, 2018

It seems like the animation fbx exporter is broken. The mesh is exported just fine and can be imported in any application without issue. As soon as the animation is exported the mesh becomes broken ...

'Get Tangent at Distance Along Spline' returns incorrect values compared to 'Get Location and Tangent at Spline Point'

Tools - Jul 18, 2018

The "Get Tangent at Distance Along Spline" node returns incorrect tangent values compared to "Get Location and Tangent at Spline Point", where the spline point is at the same distance along the path ...