OK, I've got a really weird issue which i haven't been able to find a solution for. I haven't even found someone with a similar issue which concerns me.

We have multiple computers with Autocad installed at the office, only one is having this issue.

When a poly line is drawn but not closed (ie: a box with one open side). The polyline will display fine in model & paper space areas but when printed the polyline prints closed (a full box)

Using autoCAD 2018

Image one view in model space, image 2 image in paper space, image 3 pdf of plot (attached)

Please note around the gutters on facade 'Leeman' and the line through the window on the first 'bedford' facade. PL Issue 03.pdfPL issue 02.jpgPL issue 01.jpg