Artifacts in Atmosphere Volume When Rendering Point Lights

[helloXQ7E5]

I'm trying to render a scene with an atmosphere volume and several visible point lights. One on of our workstations, the scene renders properly. On another, we are seeing artifacting around the point lights, as well as red and green pixels in some of the highlights.

It happens with both cpu and gpu, and regardless of any change in all the various samples, from the renderer to the lights. The only thing that makes this go away is removing the atmosphere volume or removing the light's volume contribution.

Any help on what might be causing this? We're crunching for a deadline and could really use any thoughts!