Structures don't save map elements that point to an asset reference

Gameplay - Mar 15, 2019

Adding map elements to a structure does not retain the information after saving and closing the project. This only appears to happen after you add a considerable number of Map containers inside a st ...

Far Shadow Cascades fade out based on the length of the Distance Field Shadows

Rendering - Mar 14, 2019

Far Shadow Cascades are fading out based on the length of the Distance Field Shadows. Causing the shadows to cut out abruptly. ...

Crash occur package application which set the StringTable

Core - Mar 14, 2019

Crash occur the packaging application which has the title referencing StringTablem. When lunch the application with editor and standalone, it's not crash. It' not occur 4.20, and crash with 4.21 and ...

Using Open Source to open a StreamingMediaSource on Android causes a slight freeze on some devices

Media Framework - Mar 11, 2019

Calling Open Source to open a Streaming Media Source causes a freeze to occur on Android when it is called. This does not happen on all devices. When testing this issue, I reproduced this issue on a ...

Inappropriate description of tool tip when bone is selected in skeleton tree

Anim - Mar 11, 2019

According to the report from Licensee, this is because it is displayed when the child's bone has Weight, which is a cause of misunderstanding. ...

Gamepad input affects multiple game instances at once, due to not needing focus.

Tools - Slate - Mar 5, 2019

Since Gamepad input works without needing focus (which was added in 4.9 with UE-14030), a Gamepad's input will also affect all instances running on the same computer. Regression?: No This occurs in ...

Performance drop in Orthographic views when Visualize->Volumetric Lightmap

Rendering - Ray Tracing - Mar 4, 2019

Severe performance drop when when entering Orthographic view, but only when Volumetric Lightmap is selected. ...

Creating a new C++ Basic Code Project, based upon a deleted With Starter Content enabled

Tools - Feb 28, 2019

Upon creating a new C++ Project called "MyProject" with starter content enabled, if you delete the project folder from the finder, then re-create a new C++ Project under the same name "MyProject" wi ...

RepLayout can hold onto hard references to owning objects, preventing them from being destroyed.

Networking - Feb 28, 2019

RepLayouts are associated with an Owning Object, which may be a Class, Function, or Struct. RepLayouts will only be cleaned up when the Owning Object is no longer valid. RepLayouts hold references t ...

CCD can produce incorrect results at low frame rates

Physics - Feb 27, 2019

The attached project has a fixed frame rate of 30fps with a simulating CCD cube above a with a full restitution floor. The cube has an odd rotation, such that it impacts the floor at a single point ...