The "zero volume body" warning has some issues:

1. Priority is wrong, should be "low", shows as "normal"
2. Format of the warning is different from others
3. Once moved to low priority, should simply say "Zero volume bodies", since the "may simulate inaccurately" part is already stated in the header above the Information warning box.
   

This ORK file shows the problem.
plasma_dart_ii.zip