On Released fires when holding down a button when using touch (mouse/finger not moving)

Tools - UMG - Sep 26, 2017

On Released fires when holding down a button when using touch with the mouse or finger. This happens in mobile preview as well as on devices. As a note, if he mouse is moved before the release auto ...

Niagara Particles don't work with Instanced Stereo Rendering enabled

Rendering - Niagara - Jul 13, 2018

With Instanced Stereo enabled, CPU Niagara particles are not visible, GPU Niagara particles render in left eye only. ...

Hot Reload triggers Ensure after default value of a property in a component included in an Actor class is changed

Core - Hot Reload - Sep 13, 2018

Performing a Hot Reload after changing the default value of a property in an ActorComponent that is included in an Actor class triggers an ensure if a Blueprint has been created from that Actor clas ...

Plugin module is not reloaded when a game module that depends on the plugin module is hot reloaded

Core - Hot Reload - Jun 28, 2018

Performing a hot reload after modifying game code (plugin code is unmodified) does not also reload plugin modules. In the attached project, there are some log messages output when the plugin module ...

Postprocess Outline material does not work

Rendering - Features Teams - Aug 1, 2018

The PostProcess Outline Material doesn't render properly. Broken in 4.20.1 (CL - 4239966) and 4.21 (CL - 4245542) Working in 4.19.2 (CL - 4033788) ...

Wheeled vehicle movement is jittery on clients

Physics - Jan 29, 2019

Vehicle movement is jittery on clients. This is most apparent when turning while driving. This was also tested in a packaged game with local multiplayer setup. Regression?: Yes This does not occur ...

Sphere Reflection Captures Are Not Cleared Out of Arrays Properly When Deleted

Rendering - Dec 11, 2018

SphereReflectionCaptures are not properly destroyed when deleted, and still take up space in the AllocatedReflectionCaptureState array. After reaching 341 SphereReflectionCaptures, the only way to c ...

[CrashReport] Crash on Mac related to cooking for IOS

Rendering - Jul 20, 2017

This is a common commandlet crash for Mac users in 4.16. In all cases, the command line is like: "(path/project).uproject" -run=Cook -NoLogTimes -TargetPlatform=IOS -fileopenlog -unversioned -ski ...

ActorComponent and 'SubComponent' Blueprint Default values are being overridden by Class Default values

Gameplay - Jun 18, 2018

Blueprint Actor values inherit the Class Default Object values instead of its Blueprint Default Object values. ...

Foliage is Offset When Streaming Existing Levels From World Composition

Tools - Foliage - Jul 3, 2018

Streaming an existing level that used World Composition places the landscapes in the correct spot, but any foliage tied to that landscape is placed on the landscape tile at 0,0 instead of its corres ...