Hi ThisIsNotSam,
Thanks for your insight! I am more and more suspect you are right. I am using a 9 metal layers version in my layout while the filer file can cover till 11 layers. Nevertheless, I did not find any place to change the metal layer definition...
When you said to "edit" the file, did you mean massive manually delete the lines that concerning metals that I am not using or did you mean there is a deck option that I can turn off the metal that I don't use?
Thanks
MD