Dragging more than one Texture into the Material Editor causes a crash

UE - Graphics Features - Mar 11, 2020

Importing two or more Textures into the Material Editor results in a crash. This is a regression from 4.24.3 (CL-11590370) as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) and ...

Warp Utils plugin crashes on Editor restart

UE - Virtual Production - Mar 17, 2020

Enabling the Warp Utils plugin and restarting the Editor causes it to crash. This is a regression from 4.24.3 (CL-11590370). This was reported and tested in 4.25 Preview 2 (CL-12055273) and reprodu ...

Instance Synced properties in Blackboard cause a crash

UE - AI - May 8, 2020

Using an Instance synced property in a Blackboard causes a crash when exiting PIE. This is a regression from 4.24.3 (CL-11590370). This was reported and tested in 4.25 (CL-13144385). This was teste ...

Depth of field issues on Translucent Materials with Raytracing and DirectX12 enabled

UE - Graphics Features - Lumen - Oct 9, 2020

With DirectX12 and Raytracing enabled, translucent materials are not showing the correct depth of field.  Reported in version 4.25.3(CL 13942748). Tested and found in versions 4.25.3 and 4.24.3(C ...

Some materials render black on Iphone 6 series phones

UE - Platform - Mobile - Oct 6, 2016

Some materials are not rendering on iphone 6 series devices. They will render completely black on one device but not others in the same series. Replacing the material with a basic material renders o ...

Start Up Movies Require Click when Finished to Open Level

Tools - Sep 11, 2015

After a Start Up movie has completed playing, the initial default map will not load until the user clicks the mouse. The option to 'Wait for Movies to Complete' is checked which will force the user ...

GetClosestPointOnCollision returning point on parent

UE - Simulation - Physics - Mar 21, 2019

GetClosestPointonCollision returns point on parent instead of welded child. From user: "The problem appears to be in PhysicsInterfacePhysX.cpp in GetSquaredDistanceToBody, line 2873. When UPrimit ...

2 minute hang and high memory usage when adding assets with large textures

UE - Foundation - Core - Cooker - May 28, 2015

2 minute (or more) hang and high memory usage when adding assets with large textures. The memory increase can be up to 3 or 4 GB when none of these assets(or referenced assets) take up nearly that ...

Unable to scroll in Structure property window

Tools - Nov 16, 2016

When enough variables are added to a structure to cause the list to be too long for the window, a scroll bar should appear and you should be able to scroll through them. This does not occur. Regres ...

Marking a Blueprint as Deprecated Causes Existing Instances to be Removed on Level Load

UE - Gameplay - Blueprint - Oct 13, 2016

Enabling the 'Deprecated' option in a blueprint's Class Settings causes all existing instances of it to be deleting upon loading any levels that contain the blueprint. Found in 4.13.1. Reproduced i ...