Posted by marcin on Jun 15, 2022; 11:24am
URL: https://forum.librecad.org/Double-lines-and-unwanted-connections-tp5721810p5721817.html

Here I have used the ODA File Converter (link is in aman's comment) to convert the original file to more modern versions. I got
dxfDoubleLineAC1018.dxf and dxfDoubleLineAC1021.dxf.

Both these files show the same problems in LibreCad: double lines and unwanted connections. ;-(