Some links look clickable but don't work - Word 2010 with Acrobat PDF creation

Question

Windows 7
Latest Acrobat subscription
Word - Office home and student 2010
I can create PDFs via Acrobat and Word on Windows 7,  but after editing the PDF with Acrobat on Mavericks OS X, only in-document links remain clickable. External web hyperlinks, both exposed URLs and blue text with URLs hidden under link text do not work in the PDFs that are edited on MacOS. They look like they work, because in the PDFs the hand cursor appears and you can click the links, but nothing happens in the browser.
I can't find any troubleshooting information about this.
My process:
Word: Options: Advanced - remove check in "use ctrl-click to follow hyperlinks"
Convert file using the Acrobat tab in the Word ribbon.
Set compatibility to Acrobat 8
Create PDF (icon)
Click Options
Check "create bookmarks"
Convert Word Headings to Bookmarks
Accept defaults, which are:
Convert document information
Enable Accessiblity
Reflow the tagged Adobe PDF.
The PDF is converted. Links all seem to work as expected.
Take the PDF to MacOS Mavericks, add pages, optimize, using Acrobat on MacOS.
Afterward, only some kinds of links in the PDF work.
This is a new problem that seemed to start when I recently began to use Acrobat's subscription version on Windows instead of FoxIt to convert the Word docs on Windows.
Q: Is this a known limitation that MacOS Acrobat creates unusable links despite the initial PDF conversion being done on Windows Acrobat?
Q: Should I do something additional so that external links remain clickable after processing on MacOs?
Thanks for any clues.

Answer 1

Thanks for your reply.
After some experimentation, it seems that the place where *some* links stop working is when I take a PDF file from Windows and optimize it on MacOS with Mac Acrobat Pro. All the links work *except* the kind where the URL is hidden behind blue underlined text. These look like they work but when you click them nothing happens.
So to fix it, I think I need to optimize the PDFs on Windows Acrobat Pro.
The MacOs Acrobat Pro, which I paid many hundreds of dollars for is therefore completely useless for documents with this kind of normal hypertext link.
Also, Windows Acrobat Pro is required in order to ensure that table-of-contents links made in Word (MacOS) continue to work in the PDF. The trick there is to regenerate the TOC on Windows Word before using CreatePDF to convert it.
I hope someone else benefits from this insight, because I wasted weeks of my life trying to troubleshoot this undocumented problem.