In the 2022-06--workshop branch Mac Preview gets quickly to page 17 then stalls, then proceeds to 18, stalls, and then fails.

The .ps file in master works.
As a workaround I'm using a Chrome extension which seems nice (and a lot faster than Preview's conversion): https://chrome.google.com/webstore/detail/postscript-viewer/ebpiondkhkldijolgmhfenknngkkjola/related