Gpu Lightmass Doesn't work with DataSmith

Hello everyone! Did anybody face a problem with baking light on a model which was imported by DataSmith? I have a model of a room in Cinema 4D, so i use type of data the cineware. When i try to use gpu lightmass i have endless baking. Nothing happens. All lights are static. And i have uv on second chanel for every model. The same time fbx works very well.