Assets containing TSet or TMaps fail to Nativize

UE - Gameplay - Blueprint Runtime - Dec 12, 2016

Multiple compile failures while attempting to nativize the QABP_Containers asset in QAGame. Errors:[2016.12.12-15.20.04:831][486]UATHelper: Packaging (Windows (64-bit)): xgConsole: QABP_Containers_ ...

Crashes upon project start up

Tools - Feb 10, 2015

Crash Report: [Link Removed] After downloading latest revision, user is no longer able to open project due to constant crash. ...

Cross building UE4Editor from Windows to Linux has incorrect runtime dependencies on DSO's

UE - Platform - Linux - Jan 23, 2019

Editor that was cross-built on Windows reportedly cannot start (using a Windows Subsystem for Linux or a VM). ...

Fix up IOS errors calling UI API from non-UI threads

UE - Platform - Apple - Jul 27, 2020

Datasmith Export Bug with Camera Target

UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 7, 2025

Potential bug was encountered when exporting vray cameras and their targets that have been path-constraint to corresponding splines. The resulting export file shows no camera targets; hence, missing ...

Lighting behavior is unreliable for translucent lit materials, results are inconsistent depending on the editor camera's FOV and the editor viewport's width/height/aspect

UE - Rendering Architecture - Oct 27, 2024

When working on the level editor viewport or testing on PIE, the visual appearance of additive/translucent lit materials changes significantly (and abruptly) when varying the camera FOV or the viewp ...

Sync'ing an asset through the editor does not update the asset until the project restarts

If an asset file is checked out / edited in source control and checked back in, others will see the yellow exclamation mark to indicate that there is an update to the asset but choosing to sync does ...

"Active" marker on shot track scales improperly when using Time Scale

UE - Anim - Sequencer - Apr 21, 2017

"Active" marker on shot track scales improperly when using Time Scale ...

Instanced Foliage Actor painted on an Actor who is attached to a Parent Actor, does not update transform when Parent is moved.

UE - World Creation - Worldbuilding Tools - Foliage - Dec 2, 2019

Instanced Foilage Actor painted on an Actor who is attached to a Parent Actor, does not update transform when Parent is moved. Note:  The foliage will move if the base actor is moved directly, inde ...