Editor crash when opening Project Settings on Linux

UE - Platform - Linux - Mar 29, 2017

When the Project Settings is opened on Linux, a call is made to run an iOS-related C# program (execute iPhonePackager certificates). This call causes the editor to crash. Unable to find mention of ...

Crash when using "Convert to Seeded" on a Cascade Module

UE - Graphics Features - May 2, 2016

Crash when using "Convert to Seeded" on a Particle System Cascade module This is a Regression as it does not occur in 4.10 Error message: Assertion failed: *Offset < (uint32)InstancePayloadSize [ ...

Ad banner is displayed incorrectly on Android 7.0 devices

UE - Platform - Mobile - Feb 24, 2017

GameActivity.java needs to be updated to show the ad popup window on Android 7.0 devices. GameActivity.java uses Gravity.BOTTOM or Gravity.TOP to place the ad. One thing to try would be to edit ...

Instances In a Hierarchical Instance Static Mesh Component Don't Retain PerInstanceRandom Values When Rotated

UE - Graphics Features - Dec 9, 2019

When an instance in a Hierarchical Instance Static Mesh component is rotated using "Update Instance Transform" it doesn't retain it's material's base color value when the material uses PerInstanceRa ...

Mesh Renders in Main Pass if Both "Render CustomDepth Pass" & "Render in Depth Pass" Are Enabled, While "Render In Main Pass" is Disabled

UE - Graphics Features - Dec 25, 2019

Meshes set to not render in the Main Pass still does if both "Render CustomDepth Pass" & "Render in Depth Pass" are enabled, while "Render in Main Pass" is disabled. Attached is an example project. ...

Enabling World Composition Skips Intro Movies

Tools - Jun 24, 2016

Startup movies are skipped when World Composition is enabled. Even with the 'Wait for Movies to Complete' option enabled, the startup movie plays for a very short time, and then the level is loaded ...

Missing material maps on user library objects created in TM 2022

TM - Core - Apr 23, 2025

Reported by user in SF [Link Removed] User library assets created in TM 2022.2.3 or older will not contain texture maps for their materials when the .tmi file is added to the TM 2025.1.1 User Libra ...

Painted Instanced Foliage Actors Rendering Multiple LOD's Simultaneously

UE - World Creation - Worldbuilding Tools - Foliage - Sep 1, 2015

When using a mesh as an Instanced Foliage Actor the Levels of Detail are always rendered. The user reporting this issue mentions he needs to use extreme different LOD value ranges for screen size wi ...

Distance Field Mesh default resolution artifacts on some shape meshes

UE - Graphics Features - Feb 10, 2016

Distance Fields generated for the 4 basic static mesh assets in the modes panel appear to have artifacts or low resolution. This is only affecting certain shapes that I can see. Adding in assets fro ...

VR Trackpad Axis Values 0

UE - Platform - XR - Dec 16, 2019

Trackpad Values return 0 Additionally: I also observed that the Go's trigger is registering as Trigger MotionController (R) Facebutton 1  and that previously there were MotionController (R) Thumb ...