Did anyone try to import tiled OSGB to Skyline Platform?

Hi, I’m trying to view the mesh model from Pix4D in Skyline TerraExplorer. I’m using CityBuilder to convert OSGB to 3dml for the meshs built from other software. I got error when I import the OSGB file fom Pix4D with the same workflow. Did anyone know how to convert OSGB to 3dml?