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. ...

Nested struct splitting gives incorrect node input for fast path

Anim - Mar 8, 2019

When any of the inputs to a fast path node are connected from a struct member from multiple splits or splits combined with breaks, all input connections to the node will be effectively ignored, inst ...

Using more than a single break node disables fast path

Anim - Mar 7, 2019

Using more than a single break struct node in sequence (despite no break nodes performing calculations) disables fast path. Splitting structs instead does not cause this issue. ...

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 RepLayouts will only be cleaned up when the Owning Object is no longer valid.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 ...

Moving .uassets that were imported from a source file with Source Control active moves the source file without marking for add

Tools - Feb 26, 2019

A licensee has reported an issue with Perforce source control integration. The issue is related to the source file for an asset that was imported into the editor. If this source file is also checked ...