I apologize for the upload -- that's very very strange. When I saved it, it had both a comment and '!!' and ¶ characters. After opening it again, the characters appear to have disappeared. It now appears as in the Hyperlink example, with the word HYPERLINK preceding the link. Do you know of a way to fix this?

In the original document (before running the above script), when I select the HYPERLINK and following text, then hit ctrl+shift+F9, the text returns to normal. In the new document (after running the script), this isn't the case. Instead, nothing happens after ctrl+shift+F9

I did do the corruption fix as you suggested. Thank you!