Wind tunnel grading. Error and documentation

Is this component just broken? I’ve searched through every forum ost I can find and here is no clear solution to this.

Also no mention of he component at all in the documentation under ‘Mesh’ or any other category

This component is glitchy af, I had the same issue too and the only details I found regarding this error was that when creating the velocity vector, the program doesn’t like if your vector isn’t facing a cardinal direction, so I ended up using a “wind north” whereby I had to rotate my site to face NNE wind vector along true north instead of using the unitized NNE vector.

Hope this helps!