PLEASE HELP Line weight change when saved to PDF?
When I exported these files to PDF the line weight of just a few boxes got messed up.
Before (in Illustrator and exported as PNG):

After (saved to PDF), note the 3 center boxes:

The line weight used throughout all boxes (including 1 and 5) is 3pt
Here are my export settings:

When I removed "Optimize for fast Web View", nothing changed. I have opened the PDF in multiple places to see if it was the viewing program (it was not). The paths are closed, and other rectangles within the image are completely fine.
