One glitch dealing with files sent as DXFs. The line weight {width} seems to default to the thinnest width, regardless of that in another CAD format.

E.g., see https://www.electrical-contractor.net/ubb/Forum15/HTML/000092.html The non-black lines are s'posed to be fatter in the C84 drawings.

[They were drawn with Autosketch V.8.]