FBX animations generated under fractional framerates fail to import

UE - Anim - Runtime - Aug 24, 2022

We now have the following error that is generated in FFbxImporter::ValidateAnimStackif (!FMath::IsNearlyZero(SubFrame, KINDA_SMALL_NUMBER) && !FMath::IsNearlyEqual(SubFrame, 1.0f, KINDA_SMALL_NUMBER ...

Niagara color picker user parameter preview no longer updates until confirmation

UE - Niagara - Apr 18, 2025

Starting with UE 5.4, the Color Picker Tool no longer updates preview values in real time for certain editor windows like Niagara when working with User Parameters. This behavior is a regression fr ...

MotionWarping does not recognize new MontageInstance with the same montage

UE - Anim - Gameplay - Jan 11, 2023

When the same AnimMonotage is played again while moving with MotionWarping & RootMotion, UAnimNotifyState_MotionWarping does not recognize it. From licensee: The issue was that in URootMotionMod ...

ChunkDownloader does not support Apple's On-Demand Resources

UE - Platform - Apple - Mar 11, 2022

ChunkDownloader etc are meant to work with your own hosting or CDN, ie something you can download with a https:// URL. Even though [Link Removed] system does appear to be https, ChunkDownloader does ...

Support compatible skeletons for child montage

UE - Anim - Gameplay - Mar 17, 2024

Windowed Fullscreen does not support multiple resolutions

UE - Editor - UI Systems - Slate - Jul 16, 2024

IOS mouse pointer / cursor support

UE - Platform - Mobile - Jan 20, 2022

Fix AssetManager rules overrides in case PrimaryAssetTypesToScan for PrimaryAssetLabel sets bApplyRecursively=false

UE - Foundation - Data Pipeline - Cooker - Dec 11, 2023

SetPrimaryAssetRules sets the "is overridden" variables (e.g. bOverrideApplyRecursively) based on a comparison with the global default rules:static FPrimaryAssetRules DefaultRules; ... ExplicitRu ...

RegisterAssetTypeCategory failed as all user bits have been exhausted

UE - Editor - Content Pipeline - Nov 22, 2024

Hi, with adding additional plugins, etc. to our project, we have encountered an issue with registering too many asset categories, such as: LogAssetTools: Warning: RegisterAssetTypeCategory("Water", ...

GeometryCollection's root proxy doesn't support complex tracing

UE - Simulation - Physics - Destruction - Dec 5, 2024

More details in this thread: [Link Removed] ...