LireOffice Writer double-line borders problem

When I try to apply a double-line border to a paragraph, the border is simply thicker instead of appearing as two parallel rules. I have tried borders on all four sides and on one side of a paragraph. I have tried several different kinds of double-line borders. I have even tried increasing the width of the border. In no instance am I getting the double-line border indicated in the border style dialog. In the case of borders on all four side, the corners do not meet cleanly and are unacceptably rendered.

I’m using LO on MacOS 10.12.6.

I’d appreciate a solution or a pointer to bug reporting.

Try upgrading to 6.1, there are several fixes with borders in the latest versions.