Meta Quest - Visual Artifacting in right eye with Lumen enabled and effects quality set to High

TM - VR - May 9, 2025

Reported in SF [Link Removed] On Meta Quest headsets, when Lumen is enabled for VR, setting the Effects Quality to High can cause visual artifacts to appear in reflections in the right eye of the h ...

SKP Import - Applied texture maps from previous Twinmotion versions are lost after reimport in TM 2025.1.1

TM - Interoperability - May 8, 2025

Reported in SF [Link Removed] For SKP imports that were added to a file in a previous version of Twinmotion, when the .tm file is concerted to and opened in TM 2025.1.1, if the SKP model is re-impo ...

AssetRegistry: In a packaged game ScanPathsSynchronous with bForceRescan=true will permanently forget about assets inside IOStore containers

UE - Foundation - Data Pipeline - May 7, 2025

This came up from several discussions on UDN and internal discussion. The root cause is that the AssetRegistry currently cannot discover packages inside IOStore containers, it relies on the seriali ...

WidgetComponent is not updated with occlusion culling disabled

UE - Platform - XR - May 7, 2025

LastRenderTime is never updated with occlusion culling disabled, so the widget component will always stop updating.  (see UWidgetComponent::ShouldDrawWidget) Developers can force updates by TickWhen ...

Texture incorrectly set when importing glTF via Interchange.

UE - Editor - Content Pipeline - Import and Export - May 6, 2025

Some Materials in this glTF model will not use the correct texture on import.  Find interior doors. They will be Green when they should be set to use Wood_Basecolor texture and not Wood_Basecolor1 ...

Vectorworks - Lights imported with incorrect transforms

TM - Interoperability - May 6, 2025

Reported in SF [Link Removed] In Twinmotion 2025.1.1, lights imported from Vectorworks appear with incorrect transforms. Lights will appear rotated 90 degrees about the Y axis with an offset. Teste ...

FInstancedStruct and TInstancedStruct in DeveloperSettings only write default values to configuration ini files

UE - AI - May 6, 2025

FInstancedStructs, or its TInstancedStruct sibling, can be included in a class that inherits from UDeveloperSettings. UDeveloperSettings will persist data in a configuration file. In the case of FI ...

ConditionalBeginDestroy on ActorComponent does not unregister the component with the world nor cause a warning

UE - CoreTech - May 6, 2025

Calling ConditionalBeginDestroy on an ActorComponent (instead of DestroyComponent) can lead to a crash due to the object not being correctly unregistered. BeginDestroy doesn't unregister tick funct ...

GPU Crash may occur when using Nanite Tesselation on landscape with several shadow casting local lights

UE - Graphics Features - Nanite - May 5, 2025

The GPU may time out in NaniteSplit when drawing VSM shadows for Nanite Tessellated landscape with in a scene with several local shadowed point lights. The issue doesn't reproduce in 5.6, likely to ...

Animating a bone in Persona when additive curves are present, causes exponential translation

UE - Anim - Gameplay - May 5, 2025

If there is an additive curve present with scalar data, and that scalar data is something like 10,10,10. When you attempt to animate the bone again the translation of the widget with translate expon ...