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 ...

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 ...

Crash When Trying to Find a Blueprint Class with Niagara Particles

Rendering - Niagara - May 22, 2019

Crash When Trying to Find a Blueprint Class with Niagara Particles Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...

Actor Component Replication Not Working on Dynamically Spawned Components in Blueprint

Networking - Aug 7, 2018

Actor components that are spawned dynamically through Blueprint are not being properly replicated to the client.  Found in 4.20 CL# 4233996 and reproduced in 4.21 Main CL# 4258917 Unable to test i ...

Postprocess Outline material does not work

Rendering - 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) ...

[CrashReport] UE4Editor_Engine!FViewMatrices::FViewMatrices()

Rendering - Aug 3, 2017

This is a trending crash in the 4.17 previews. Unfortunately users have not provided any descriptions of their actions when the crash occurred. Source Context 464 FViewMatrices::FViewMatric ...

Directional Light Is Not Casting Shadows Past a Certain Point In Large Worlds On All Actors/Grass

Rendering - Sep 5, 2018

Directional light is not casting shadows past a certain point in large worlds on all actors/grass. In 4.19 CL# 4033788 shadows show up but not until the camera is very close to the object. 4.19 Pro ...

[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 ...

[CrashReport] FSlateRHIRenderer::ConditionalResizeViewport()

Tools - Jul 27, 2017

This is a common crash occurring on Windows and Mac in 4.15 and 4.16 (two different callstacks with close similarities). The callstack is also similar to UE-45649 and may be related. User Descrip ...