https://forums.autodesk.com/t5/autocad-forum/block-editor-crashing/m-p/5819024#M312167 it happend in every file,<BR />some time it happend when the file size is very huge<BR />use exporttautocad command decreas your dwg size than try<BR />i think it will work Wed, 16 Sep 2015 08:28:26 GMT Anonymous 2015-09-16T08:28:26Z