A fatal error has been detected

hi atish
in my model, many *.stp files imported and steel model from Tekla.
if i did not use "hatching rules" in draft drawing , all drawing can be updated
if i use "hatching rules" , fatal error appeared..

hi atish
in my model, many *.stp files imported and steel model from Tekla.
if i did not use "hatching rules" in draft drawing , all drawing can be updated
if i use "hatching rules" , fatal error appeared..