I need to report three major bugs I’ve encountered to your technical team. These issues have not been resolved so far, and the recent problems have severely impacted my workflow, so I feel compelled to bring them up.
First, an issue present in both versions 2025.2 and 2025.1.1: When models that have been mirrored/flipped in SketchUp are imported into these two versions of Twinmotion, the front and back of the textures on these models are also flipped. These flipped textures either become transparent or appear darker than normal, and they exhibit feathered edges near the viewport periphery. Changing the problematic textures to “Two-Sided” within Twinmotion can resolve the transparency issue, but the darkening and feathered edges near the viewport remain unresolved. I also tested breaking apart the mirrored groups/components within SketchUp and redefining them as new components, which solved the problem for a small number of cases, but most remained unresolved. This issue significantly impacts workflow efficiency, especially since versions prior to Twinmotion 2024.1.2 did not have this problem.
Next, an issue present in versions 2025.2, 2025.1.1, 2024.1.2, and 2023.2.4: In both Lumen real-time rendering and Path Tracer rendering modes, reflections on glass materials display a ring-like pattern of pure white diamond-shaped artifacts. Changing the skydome texture or the surrounding models does not eliminate these patterns.
(Version 2024.1.2 is slightly better,at least the diamonds aren’t pure white.)
(In version 2023.2.4,the diamonds appear in different locations, not in the center but towards the top and bottom.)
These artifacts are so prominent that we cannot directly provide the rendered images to clients.We are forced to edit them in Photoshop, which substantially increases our workload.
Finally, an issue present in versions prior to 2023.2.4: In both Lumen real-time rendering and Path Tracer rendering modes, certain textures on models reflected in mirror materials and glass materials appear as pure white. The cause remains unknown. We typically apply blurring in Photoshop to mitigate this. This issue has been around for a long time, and I haven’t taken screenshots recently, but you should be able to reproduce it easily.
I have tested all the above issues on both Nvidia and Radeon graphics cards, including the RTX A6000, RTX 5090, RTX 4090, RTX 3070 Ti, RTX 3060 Ti, RX 6900 XT, RX 5800, RX 5700, RX 6600, and RX 580.