Unreal Engine Issues

The speed and delay of Animators is increased in exports when the scene contains 3D Grass

Reported in SF [Link Removed] For animators (translators and rotators), when the scene contains the 3D Grass materials, videos exported from the scene will display animators delay and speed up abou ...

Assets on paths with speed parameters are sped up in Path Tracer exports

Reported in SF [Link Removed] In Path Tracer renders, all paths with a speed component (vehicles, bicycles, custom) will render at an increased speed than specified in the exported render. This is ...

Crash in PCGComponent during file load for file with vegetation from placement tools

Reported in SF [Link Removed] Client has a file that consistently crashes during loading in the PCGComponent.cpp that appears to be linked to placed vegetation. Crash occurs during file open and m ...

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 ...

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. ...

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 ...