Lines missing when importing PDF into Illustrator
Hi, I am working on a project where I am importing a map from QGIS into Illustrator to edit labels and other things. When I export the PDF from QGIS and open it in preview or other apps, it appears normal. However, when I open it in Illustrator, it is missing. I have attached pictures:

Missing border on east side in Illustrator,

Border appears in preview and other apps.
I've tried exporting from QGIS as a SVG and the border is missing entirely when opened in Illustrator.
Please help!!
