Unreal Engine Issues

Crash in UPCGComponent::CleanupLocalImmediate(bool,bool) on file load

Reported in SF [Link Removed] User has a file that will crash at launch consistently. Crash report indicates the problem is with PCG content inside the file. ...

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

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

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 ...

Datasmith - Lights imported with incorrect transforms

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

Distant paint/scatter grass not rendered in PT exports

Reported in SF [Link Removed] In TM 2025.1.1, in PT renders with large amounts of scattered or painted vegetation, distant grass may not appear in exported renders that would previously appear in t ...

Note visibility issues in 2025.1.1

Missing material maps on user library objects created in TM 2022

Reported by user in SF [Link Removed] User library assets created in TM 2022.2.3 or older will not contain texture maps for their materials when the .tmi file is added to the TM 2025.1.1 User Libra ...

Clay render: Bump setting ignore the texture rotation

BSOD when launching Twinmotion on NVIDIA 50-series GPUs with 576.02 Drivers

Reported from multiple users. NVIDIA RTX 50-series GPU users are reporting BSODs when attempting to launch Twinmotion with the latest drivers installed. The crashes occur on the 576.02 driver versi ...

Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets

Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...