Unreal Engine Issues
Unreal Engine Issues
Material Layers "swap" location instead of shift downwards.
UE - Rendering - Architecture - Materials - Oct 17, 2023Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...
Missing materials on the rear lights and windows of library vehicles
TM - Content - Oct 24, 2025Reported in SF [Link Removed] The rear light material and window materials on Twinmotion library vehicles are not present on many vehicles in TM 2025.2. Confirmed affected vehicles are in the foll ...
Ensure occurs when turning on Constraints in Advanced Show Flags
UE - Graphics Features - Jan 11, 2017An ensure occurs when Constraints are toggled on in the show options. Note After the ensure, you can toggle Constraints off and on freely This is a Regression from 4.14.3 ...
Collision for bsp stays in level after bsp is deleted
UE - LD & Modeling - Modeling Tools - BSP - Jun 30, 2015If a bsp brush is deleted from a level, the level has geometry built, and the user presses play then uses the "show collision" console command, the collision for the bsp wlil still appear. This does ...
User cannot undo the automatic changing of Mobility settings
Tools - Sep 12, 2016When the users causes a component to automatically change its Mobility setting by changing that setting on a parent or child component, undoing that change only affects the manual change caused by t ...
Building lighting fails on Linux
UE - Platform - Linux - Jan 15, 2016When building lighting on Linux, the build process fails because UnrealLightmass cannot find the library libUnrealLightmass-Serialization.so. Reported using Mint Cinnamon 17.3 Internal machine uses ...
Distance Fields do not work with Directional Lights when using a AMD Radeon card.
UE - Graphics Features - Aug 25, 2015Distance Field shadows do not appear to be working with those using Radeon series cards. Sample project attached DXDiag of machine that is having the issue is attached. AMD Radeon 200 series. ...
Crash Occurs when changing the 'Max Metal Shader Standard To Target' option within iOS Project Settings
UE - Platform - Mobile - Jan 26, 2017A crash occurs when setting the Max Metal Standard Shader version within the Project Settings for iOS. I tested on both Mac and PC and the crash occurs on both machines. Regression? No, this is not ...
Raw Input device not registered after startup
UE - Gameplay - Input - Feb 22, 2017If a raw input device is connected to the computer after starting the editor/packaged game, the device is not registered and input is not received unless the editor/game is closed and then restarted ...
Crash adding preview scene profile from skel mesh editor and removing it from anim blueprint editor
OLD - Anim - Apr 14, 2017REGRESSION: Yes, does not occur in 4.15 Crash occurs when the user adds a Preview Scene Profile while in the animation or skeletal mesh editor, and then removes it while in the animation blueprint ...