When editing a Niagara module an error can occur if using non-module functions, even with a correctly set usage bitmask

UE - Niagara - Feb 14, 2023

When editing the module the call to FHlslNiagaraTranslator::HandleDataInterfaceCall has the usage "Module", so it treads the module as if that was its stack context, even though the module's usage b ...

Edit Layers naming is being added to the Localization Dashboard

UE - Rendering Architecture - Materials - Mar 1, 2024

When a Material Instance with Layer Parameters is added to the Level Landscape, the Layer Names get added to the Localization Dashboard. ...

When moving actors to the current level, their label is reset and displayed incorrectly on the Scene Outliner until the next time it is refreshed

UE - Editor - Workflow Systems - Jul 14, 2025

This is a regression, it worked correctly up to UE 5.4, but repros on UE 5.5 and 5.6. Also, this seems related to [Link Removed], which was fixed by CL 40649716/40649749 and integrated into UE 5.6, ...

Reverting a material through source control on Mac causes the thumbnail to become distorted

Tools - Oct 17, 2016

The thumbnail on mac becomes distorted when the material is reverted through source control. This does not occur on windows and is not a regression. Opening the Material or right clicking on it ma ...

Changes in Blueprint Properties not Updated in placed Instance

UE - Gameplay - Blueprint - May 16, 2016

When changing some properties in a Blueprint, the changes are not reflected in placed instances of the Blueprint. I've included repro steps from the licensee who reported this. I verified these step ...

Flickering Meshes after removing HISM instances

UE - Graphics Features - Aug 2, 2018

Removing HISMs in a packaged project causes meshes to remain and flicker in a packaged project. (Inclusive Nativization is enabled in test project, but issue occurs with nativization disabled as we ...

Fail to save level with a Blueprint component containing User Data

UE - Gameplay - Blueprint Editor - Jun 10, 2019