With respect, I do not actually follow, or should I say understand this "Problem"

The models I export from MoI then import into another application for rendering, I use that renderer(application) to make needed UV. Why is there/ should there be a need for a model to have specific/defined UV etc when imported, should not the application importing that object have the ability to make (be it auto or manual) correct settings for render?

Maybe I am missing something, or can some applications not create/adjust UV etc on imported models?