Problem with smoke rendering

Hello all

I have this animation to make of object impact on a planet. To achieve desired effect I use smoke simulation for a cube that follows a curve. After baking smoke sim there is a following problem: from side view I can see only smoke, and from front view I can see only fire. Examples below as gifs:

front: http://gph.is/1qhIzMb

side: http://gph.is/1ZLXydB

Any ideas?

I will a blend file