As you can see, on the left the smoke effect has no issue, but in the baking screen on the right there is a noticeable black box obstructing both the visuals and the simulation itself. The black box does get baked into the SubUV map.
I have looked at old SubUV’s and cannot find the box, but on all new ones I make it persists. I have even looked at the source systems that come with the plugin and they appear there too.
How do I get rid of it?