Particle disappears if it is using PSA_Velocity and setting custom time dilation 0

UE - Graphics Features - Dec 7, 2016

A licensee reported some of their particles disappear when setting the actor's custom time dilation 0. This seems to happen when a particle is using PSA_Velocity as Screen Alignment. This repros in ...

-culture= Launch Parameter no longer working when launching standalone game

UE - Editor - UI Systems - Localization - May 8, 2018

Launch parameter for changing culture no longer working with additional launch parameters. Also tested on packaged 4.19 project with same result. ...

Widget blueprint details panel appears to jitter when dragging widgets in the designer tab

UE - Editor - UI Systems - Feb 1, 2019

When clicking and dragging a widget in the designer tab of a widget blueprint some options in the details panel will begin to move/shake/jitter/readjust. ...

Cannot run packaged project if a code class contains a static FSimpleElementCollector variable

UE - Graphics Features - Nov 17, 2017

Adding a static FSimpleElementCollector variable in a code class prevents the packaged project from running. No log is created. ...

ProjectWorldToScreen always returns True

UE - Gameplay - Blueprint - Apr 4, 2018

ProjectWorldToScreen always returns true. User states: "This probably comes from that line of code : bResult = Player->PostProcessWorldToScreen(WorldPosition, ScreenPosition, bPlayerViewportRelati ...

Custom Water Body does not work with its own Distance Culing

UE - Graphics Tools - Terrain - Water - Sep 14, 2023

WaterBodyCustom seems not to work with Distance Culling settings on its own actor, either Draw Distance/Never Distance Cull or Allow Cull Distance Volume.  It only can be controlled by the CullingD ...

Ctrl + z still active in PIE

Tools - Jan 20, 2016

Users can select ctrl + z while playing in Editor causing PIE to stop and undo last change, often freezing the editor temporarily, and sometimes causing a crash. Workaround: This does not occur if ...

Controller Assignments appear incorrect for UI when "Skip Assigning Gamepad to Player 1" is set to true

UE - Editor - UI Systems - Jul 16, 2019

When using a controller to navigate/ interaction with UI it appears that the "Skip Assigning Gamepad to Player 1" option is not taken into account when assigning input for UI. ...

WPO is incorrectly generated on materials using Material Attributes as input to Landscape Layer Blend node

UE - Rendering Architecture - Materials - Jan 31, 2024

This comes from this UDN : [Link Removed] It occurs with this setup :  [Image Removed] , where Set Material Attributes expressions act as inputs to the Landscape Layer Blend material expression. ...