Ah yes. The blow up your model error.
1) Clear your obstructions.
2) Apply the changes to the XS.
2) Reinput the obstructions how you would like to and it has worked for me.
It’s an edit obstructions error. Pretty bad in my opinion. We sent it in and got a message back they couldn’t reproduce it. I think it has to do with the way the edit is made in the geometry file and saved, but have not had the time to really explore it.
Cheers.