Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.12
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: rBf1aa4d18d49d
Short description of error
While rendering in cycles my smoke is missing pieces and is very blocky.
Exact steps for others to reproduce the error
Make a quick smoke sim above 60 res or up with adaptive domain (not sure if has to be with a smoke collision object) then add a principled volume to world output and change density to .03 or up. Once a light source is added like a sun and you give it a second to render you can see the weird distortions.
From the file attached just click render and you can see the weird issue
If you want to know what this looks like in a rendered video here is one https://www.youtube.com/watch?v=pOM5uJ_plng&feature=youtu.be
Ok so I did some more testing and it looks a principled volume smoke sim cant be in the same space as an existing principled volume area (world or just a cube)