Reply To: Leaking smoke when rendering in cycles
That’s not right! I noticed a similar issue while making this course, though not quite as bad. What fixed it for me was simply rebaking the simulation right before rendering.
I think 2.80 has some issues with the way it caches bakes, and they don’t always seem to cache properly.
If that doesn’t work, you can also make sure that your launchpad’s permeability attribute in its collision settings is set to 0. Permeability lets particles pass through a mesh, so that may be an issue as well.
