EEVEE smoke domain is full of balck smoke? But density is set = 0

I have no idea how to use smoke in 2.8 because everything I try it just keeps filling up with black smoke starting from frame 0,

I have density set to 0 but it still fills up with smoke,

When i set density to non-zero then the black smoke slowly fades away and I can see my scene again.

Is this a bug in 2.8? Or are there extra steps to prevent erroneous smoke from forming?