Preserve colors from Revopoint scan to BambuLab print (3MF) without manual color assignment

I scan in color with a Revopoint Miraco Plus and want to print multicolor directly on BambuLab H2D with AMS. The challenge is that Bambu Studio only shows the geometry, while UV-mapped color/texture from the scan disappears, regardless of file format (.OBJ+MTL+PNG, .PLY, .GLTF, .3MF).

I have tried via MeshLab, Blender, Fusion, FreeCAD, Orca and Prusa, but none of them have preserved the colors when imported into Bambu Studio.

Does anyone know of a workflow or tool that can convert the scan to an AMS-compatible 3MF with color zones, so that manual painting in the slicer is avoided?