Converting BSP to static mesh on Linux causes the editor to crash

UE - Platform - Linux - Mar 11, 2016

Converting a BSP to a static mesh will freeze and crash the editor when done on Linux. Windows does not exhibit the same conversion crash. ...

Widgets become unresponsive If a button's Down and Up click is interrupted

UE - Editor - UI Systems - Aug 24, 2015

If a button's interaction settings are set to Down and Up and the button is disabled in between Down and Up (The button is clicked and held and becomes disabled before releasing the button). All inp ...

VLC Media Platform Override ignored in Packaged Game

Media Framework - Dec 14, 2016

If the user has compiled the VLC Media Player plugin and uses the Platform Overrides to assign VLC player as the default decoder, it will not be applied in a packaged game. ...

Crash when launching 4.14.2 in cmd window with -dx12 argument

UE - Graphics Features - Jan 3, 2017

Launching the editor with DX12 from a command window is crashing the engine. Note Crash occurs on Nvidia version 376.19 and does not occur on 376.33 This is a Regression ...

Clearing text property from a Text widget won't work the first time

UE - Editor - UI Systems - Mar 21, 2017

It currently takes two attempts to clear the default text from a Text Block widget. The first time you try, the property will repopulate with the previous string. ...

Cast Hidden Shadow Creates Shadow Artifacts in Splitscreen

UE - Graphics Features - Apr 18, 2018

When using Cast Hidden Shadow in splitscreen, the shadow from your character has severe shadow artifacts. This has been observed in 4.18.3 as well as 4.19.1.  ...

Vertex Interpolate Node Doesn't Work with Lightmass

UE - Graphics Features - Lumen - Aug 8, 2018

The vertex interpolate node doesn't work with lightmass. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4258917 ...

Net Multicast RPC functions do not fire other session members properly

UE - Networking - Sep 5, 2018

Using a multicast function does not call the function on both client and server. The functionality in this reproduction project can be found in the BP_MyPC blueprint. Regression?: No This occurs in ...

Lighting Only Affects Tilemaps From One Direction

UE - Graphics Features - Oct 9, 2018

Lighting only affects tilemaps from one direction.  Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.22 CL# 4435744 ...

Contact Offset no longer appears to have an effect

UE - Simulation - Physics - Jan 15, 2019

When modifying the contact offset in a project it appears to have no effect. The setting that worked in a previous engine version (4.19) now collide in the same way as the default settings. ...