Skeletal Mesh rigid body simulation is not being updated with correct bones locations right after Skeletal Mesh is spawned

UE - Simulation - Physics - Nov 5, 2018

When simulating in Editor, the Skeletal Mesh bone locations are not being passed into simulate if the simulation is being toggled the same frame when the Mesh is being set on a Skeletal Mesh compone ...

GetTeamAttitudeTowards is called before AI Controller can spawn and gets a null value

UE - AI - May 6, 2019

Licensee is experiencing an issue where GetTeamAttitude is being called before the AI Controller's Construction event. This results in the warning "GetTeamAttitudeTowards - Pawn is null!" being outp ...

SceneCapture2D Component Show Flags that are Modified in a Blueprint initially are Copied not Referenced

UE - Graphics Features - May 17, 2019

If you disable show flags in a SceneCapture2D component of a Blueprint, trying to re-enable them in the Blueprint will not update instances in a level. Anything that was left alone will change along ...

Nvidia Graphics Drivers cause editor menus to flicker and disappear after using the editor for an extended period of time

UE - Graphics Features - Apr 16, 2021

This issue seems to be occurring on a variety of Nvidia cards. So far, I haven't seen any indication that it is affecting AMD graphics cards. The majority of the reports have indicating that the pro ...

The Get node for the float value of Custom Axis Mappings only return 0.0 when called from Blueprints other than the Controller

UE - Gameplay - Input - Dec 3, 2014

The Get node for the float value of Custom Axis Mappings only returns 0.0 when called from Blueprints other than the Controller. Input from the player does not affect the value. Note: this works a ...

Static code functions cause associated blueprints to not compile after a hot reload

UE - Foundation - Cpp Tools - Hot Reload - Oct 14, 2016

If a function inside a BlueprintFunctionLibrary class is declared as static, instances of the function node inside blueprints cause the blueprint to not save after a hot reload. This does not affec ...

Black artifacts when navigating viewport

UE - Graphics Features - Apr 18, 2017

When navigating the viewport, placed actors can leave a "black shadow" as the camera viewpoint changes. The artifacting remains until "Game view" or wireframe mode is activated. This only occurs i ...

World Outliner selection does not update transform widget location during play

Tools - May 23, 2017

World Outliner selection does not update transform widget location during play. This issue can be easily fixed simply by reselecting the object, this issue only affects the first time the object is ...

Point Lights Y-Axis Rotation Changed from 4.18 to 4.19

UE - Graphics Features - Jun 6, 2018

Possibly related to [Link Removed]. This affects Static, Stationary, and Movable point lights when upgrading a project from 4.18 to 4.19.2 or Main (tested in CL 4101872). If you click the "Reset to ...

Animations are stuttering in Game Preview Server window

UE - Networking - Jul 27, 2018

When 'Run Dedicated Server' is unchecked and you run PIE with 2 or more clients, all client's animations are stuttering on Game Preview Server window. This does not happen when Run Dedicated Server ...