Unreal Engine Issues
Unreal Engine Issues
Post processing set to medium in engine scalability with bloom set to 0 causes color settings not work
UE - Graphics Features - Apr 25, 2016Color effects appear not to work when post processing is set to medium and the bloom intensity is set to 0 ...
TMaps with instanced objects: modifying instanced object data in child affects parent
UE - Framework - Blueprint - Jul 25, 2023Given a TMap where the value type is an instanced object: when a child blueprint is saved with modifications to the TMap, and then additional TMap are added to the parent blueprint and the child blu ...
Build Error when using ENUM without 0 entry
UE - Foundation - Cpp Tools - UnrealHeaderTool - Nov 26, 2019Lighting does not properly affect landscapes under another landscape, even if Static Lighting Resolution is increased
UE - LD & Modeling - Terrain - Landscape - Apr 29, 2015Lighting does not properly affect landscapes that are below another landscape, even after static lighting resolution is increased. This results in some areas that should be completely shadowed to ha ...
LODs with screen size 0 in legacy assets are incorrectly converted to 1 on load
UE - Editor - Open File Formats - Sep 11, 2025When loading a mesh asset (static or skeletal) created in an old version of Unreal (e.g. 4.10), any LOD whose LOD screen size was originally set to 0, is converted to 1. This causes LODs that would ...
MRQ render with a slow output format drives Niagara GPU tick flush into its dummy-view path, causing an access violation in SetShaderParameters
UE - Rendering - Architecture - Niagara - Aug 18, 2026Sorry for the AI ticket, but it did a better job than I could: Rendering a level sequence through Movie Render Queue crashes the editor with an EXCEPTION_ACCESS_VIOLATION when the scene contains a N ...
Sound Mix Modifiers do not properly affect Sound Class
UE - Audio - Mar 30, 2015Sound mixers do not properly override variables within a sound class. This prevents users from being able to modify variables such as volume or pitch quickly and efficiently by using the push/pop st ...
StaticMesh->RenderData->LODResources[0].IndexBuffer empty in Standalone games.
UE - Gameplay - Nov 14, 2014GetArrayView is returning incorrect values in Standalone games. The correct values are returned when played in Editor. ...
Structs cause packaging to fail when Blueprint Nativization Method is set to "Inclusive"
UE - Gameplay - Blueprint - Apr 26, 2017Structs cause packaging to fail when Blueprint Nativization Method is set to "Inclusive" Note: Appears to be a regression (worked in 4.15.1) Error example: UATHelper: Packaging (Windows (64-bit)) ...