This is the most relevant entry I found related to the topic: > If you need to inspect specific layers or debug layer-specific issues, switch back to the 2D view using the **View Mode** toggle in the top toolbar. > > > Layer visibility controls are only available in the 2D PCB view. The 3D view uses a simplified rendering mode and doesn’t support layer selection. [Source](https://docs.flux.ai/flux/reference/reference-layer-view-control)