Unreal Engine Issues

Sky appears black in some exported renders

Reported by beta user in SF [Link Removed] User exported an image with Path Tracer and the exported render displayed the sky as black. This issue seems to be very low repro, and neither myself or ...

Mac - Inconsistent results for Lumen renders

Reported in SF [Link Removed] and [Link Removed] Users on Mac are reporting inconsistent rendering results for Lumen in image exports that do not include any settings changes. When exporting some ...

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 ...

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 ...

Video material previews incorrectly on Mac

Received multiple reports of users on Mac computers experiencing issues previewing video materials in Twinmotion 2025.1. When adding video materials to the scene, the scale seems to be incorrect an ...

Animated characters may appear in A pose after loading a file with Path Tracer enabled

When saving a file with Path Tracer enabled at the time of save, animated characters will appear in an A pose state. This will persist until Path Tracer is disabled. Occurs in Twinmotion 2024.1.2 a ...

Missing vegetation created via PCG on export

If you compare this 2 automation tests done on Swiss chalet project, you could see that some parts of vegetation are missing : [Link Removed] [Link Removed] The diff between the 2 exports is caus ...

Open street map building don't cast shadows in raster mode

Reproducible with cascaded and virtual shadow maps. Seems to be a regression from 2024.1.2. All TM 2025.x version have this issue. [Image Removed] ...