There is a problem with Chrome 80 and the PostScript passthrough. The bug is confirmed by Google and they are trying to fix it.
https://bugs.chromium.org/p/chromium/issues/detail?id=1030689
The PDF printer version 11.12 contains a fix/workaround for this problem. This means that if you see the following error when printing to PDF then you just upgrade to the newest version.
%%[ ProductName: GPL Ghostscript ]%% %%[Page: 1]%%%%[Page: 2]%% %%[ Error: typecheck; OffendingCommand: setlinecap ]%%
If you are interested then you can check this link to see the actual fix that the next version of Chrome will have.
https://pdfium.googlesource.com/pdfium/+/f201c7389829371dcf2bbcc58b38a1910b5856e6%5E%21/#F0
One of our users also reported having seen this problem with the Firefox browser. However, this is not confirmed.