adjusting the scale of a DM via BPs will not give accurate collision

UE - Simulation - Physics - Destruction - Dec 8, 2014

DESCRIPTION: Adjusting a DMs scale via blueprints will cause issues for the collision of the DM once it has been scaled up or down. Scaling down by half or up by a value of 2 or 3 is easier to see t ...

Attenuation Overrides Reset for Spatialize on Sound Cues after Upgrading to Newer Engine Version

UE - Audio - Nov 17, 2016

A user on the AnswerHub has reported that a number of his sounds have had their Attenuation Override settings reset, more specifically the 'Spatialize' setting. I ran a few tests and discovered tha ...

Stationary Directional Lights not Rendering Dynamic Shadows on Mobile

UE - Platform - Mobile - Jan 21, 2016

As the title suggests, dynamic shadows on mobile when using a stationary directional light are not appearing at all when deployed to the device or when viewed in the mobile previewer. The odd part ...

(Paper2D) Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game

UE - Gameplay - Paper2D - Nov 29, 2017

With tile maps, Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game. This issue does not appear to be a regression. Versions Tested: Issue occurs on all ...

Flat Tessellation broken on DX12 renderer

UE - Graphics Features - Feb 13, 2018

Behavior reproduced in 4.17.2 CL 3658906, 4.18.3 CL 3832480 and 4.19.P4 CL 3873914 To run the engine with DX12 I made a shortcut of the UE4Editor.exe found at D:\Epic Games\UE_4.18\Engine\Binaries\ ...

Auto Compute LOD Distance doesn't properly change screen sizes

UE - Graphics Features - Jun 12, 2018

Auto Compute LOD Distance doesn't properly change screen sizes. The screen size for each LOD will be exactly the same regardless of the mesh you use with generated LODs. Working as expected in 4.19 ...

Using a Sub Anim Instance causes a "Sub Instance Loop" Compile Error

OLD - Anim - Aug 7, 2018

Using a Sub Anim Instance causes a sub instance loop error when referencing another Animation Blueprint. This is a regression from 4.19.2 (CL-4033788) as it complied without error. This issue was r ...

Setting a console variable interacts with window state

When the game window is set to be windowed and maximized, setting a console variable changes the window's state from being maximized to its default size.  This is a regression as it is working as e ...

UMG Drag and Drop stops working in a Packaged or Standalone Game

UE - Editor - UI Systems - Aug 20, 2018

Drag and drop operations just become broken on packaged builds or launching stand-alone, despite working inside the Editor (PIE). This is a regression from 4.19.2 (CL-4033788). This issue was repor ...

Animation FBX export is broken for ThirdPersonCharacter

UE - Editor - Content Pipeline - Datasmith - Exporters - Jul 20, 2018

It seems like the animation fbx exporter is broken. The mesh is exported just fine and can be imported in any application without issue. As soon as the animation is exported the mesh becomes broken ...