How to render Fireanimation on transparent Background in Evee or Cyle?

Hey,
i cant render some Fireanimation on a transparent Background in Evee.
It works with the “Sky” Option.

Do you have any Ideas?!
nontransparent|690x341

Thank you!

We had a very simular issue recently here with cycles. I suspect this is the same problem (and has the same solution):