Can anyone help with this problem?

I attach two screen prints, one showing what you see on the screen, the other showing how it prints out.  The scale of the batting line is quite different.

I have tried doing refreshes and rebuilds both within and outside the viewport but nothing makes any difference.

This doesn't  happen in all drawings, which is even more odd.

Actually the whole thing about scaling of lines is a nightmare both in AC and DS.  Sometimes with broken lines it is almost impossible to find the right scale to even make the broken nature of the line show up.  Lots of trial and error involved.  It would be great if some bright spark could devise a way of making it more intuitive.  Anyone agree?