Hi,
There is an annoying problem in Altium Designer 18 that arises when generating PDFs of projects with variants. When displaying variant which have several not fitted parts, the red crossing lines are partly or at all hidden by the other elements - parts, polygons or wires. This is not the case in Altium Designer 15.
The problem exist in projects created in Altium Designer 15 that are opened in Altium Designer 18 and in projects created in Altium Designer 18.
The attached picture represents the problem - the red crossing lines are partly hidden.
Why this happen? May be there is some option that has been introduced after Altium Designer 15? May be these lines have its own layer?

Regards.