Unreal Engine Issues
Unreal Engine Issues
Plugin dependencies causing RI parameter initialization failures (UDN)
UE - Niagara - Oct 6, 2023Error on some Niagara emitters using the WindForce module: LogNiagaraEditor: Error: Invalid input type found while attempting initialize new rapid iteration parameters. Function Node: /Game/FX/Expl ...
CookAdditionalFilesOverride Context struct
UE - Foundation - Data Pipeline - Cooker - Sep 23, 2022virtual void UObject::CookAdditionalFilesOverride allows non-package files to be copied or created during the cook whenever a UObject of your class is in a package that is cooked. This is useful for ...
AssetManager: PrimaryAssets: Allow PrimaryAssetTypesToScan entries to be extended from plugins to add directories
UE - Foundation - Data Pipeline - Cooker - Feb 23, 2023Game.ini:[/Script/Engine/AssetManagerSettings]:PrimaryAssetTypes is an ini setting to specify which PrimaryAssets should be used by the engine during cook to specify which packages gets cooked and w ...
Recently Placed Actor Factories can be Mismatched
UE - Editor - Workflow Systems - Apr 24, 2023The Add Content menu in the engine (on the menu bar just above the viewport) maintains a category of Recently Placed actors. In order to remember items between runs of the editor, the Recently Place ...
Convex hull generation fails when first 3 verts are colinear
UE - Simulation - Core - Dec 9, 2025The licensee identified a number of cases where loading assets will trigger convex hull generation warnings:If the first 3 verts in the set are colinear (in which case IsPlanarShape() returns true b ...
Map actor reconstruction does not reattach external non-root components
UE - Framework - Components - Jan 17, 2024For two map placed actors, if one actor B's non root component is attached to another actor A, the attachment is not retained when actor A reruns its construction script, such as when moving actor A ...
UMG: RetainerBox with zero-size child returns incorrect LayerId on OnPaint()
UE - Editor - UI Systems - Nov 4, 2025When a RetainerBox contains a child that for some reason has a desired size of zero, its OnPaint() method can incorrectly return LayerId 0. Afterwards, widgets further down the hierarchy can base th ...
Collision Preset of a Static Mesh asset cannot be properly edited with the Property Matrix
UE - Editor - Workflow Systems - Sep 11, 2024Currently, the Property Matrix does not seem to support Details Customizations. As a result, when a Static Mesh asset is edited using the Property Matrix, the "Collision Presets" combo box does not ...
Moving a mesh with complex-as-simple collision clears overlaps previously detected by moving collision components
UE - Simulation - Core - Jun 26, 2024Consider a static mesh set to use complex-as-simple collision, and a convex collision component, starting to overlap each other. When only the Collision Component moves, its collision with the stat ...
ConfigContext on linux requires perforce path for defaults.global.json when global is perforce resolved
UE - Foundation - Horde - Server - Mar 7, 2025As of 5.5.2; appears present in main head as well. We have a asymmetry between how Include JSONs are resolved between Linux and Windows. This boils down to our URI construction in ParseIncludesAsyn ...