Unreal Engine Issues
Unreal Engine Issues
Texturing: RC 1.5 texturing hangs, RC 1.4.2 works fine with same dataset and workflow
RC - Texturing - Feb 13, 2025Tested on the provided project, it looks like the unwrap was provided, but then the process stuck. I also checked the Task manager and there wasn't almost any activity for RealityCapture.[Image Remo ...
Landscape holes retain collision if Mip level changed to 1
UE - LD & Modeling - Terrain - Landscape - May 19, 2015Landscape holes have collision if the mip level of the landscape is changed from 0 to 1. ...
Particle Systems Don't Play In Reopened Levels With ES 3.1 Enabled
UE - Niagara - Jan 27, 2020Particle systems placed in levels don't play as expected on level load when using ES 3.1 Preview. Found in 4.24.1 CL#10757647 Reproduced in 4.25 Main CL#11115840 ...
Translating sockets in Persona is not affected by Snap Options
OLD - Anim - Dec 14, 2016In Persona, moving a socket around is not affected by any changes to snapping (scale or size). Rotation is affected however. ...
20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only
UE - Platform - Mobile - Jun 22, 2015User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...
Find node returning -1 in packaged game even when the item exists in the array
UE - Editor - UI Systems - Localization - Apr 4, 2017Find node returning -1 in packaged game even when the item exists in the array ...
Unable to launch version 4.24.1 after fresh installation. Assertionfailed IsValid()
Tools - Dec 31, 2019User is receiving a crash after a brand new installation of version 4.24.1 NOTE: User is able to launch 4.20 - 4.23.1 without issue. "I tried reinstalling the editor build, updating all of my dr ...
Mutable constant texture variable with ClipUV mask only works with new experimental dynamic variable is connected as well
UE - Anim - Mutable - Sep 22, 2025We are attempting to use Mutable in 5.6.1 and have encountered an issue which we are not sure how to resolve. The issue occurs when using the ClipWithUVMask node. In short we have a customizable o ...
Different Load Orders affect Shadows on Foliage & HISM
UE - World Creation - Worldbuilding Tools - Foliage - Mar 14, 2019Different Load Orders affect Shadows on Foliage & HISM Discovered during verification of [Link Removed] Also created a Blueprint actor with a HISM and duplicated it three times and changed the mob ...
Assertion failed: GEditor->GetSelectedActorCount() == 1 in FLevelEditorActionCallbacks::Paste_CanExecute
Tools - May 3, 2017This is a high frequency crash occurring for our users. It appears to be the same crash reported in [Link Removed], however that was fixed in 4.15.0, and the specific repro steps are verified to no ...