Bookmarks in hyperlinks disappeared - HELP!!!

[Marcebrown]

I use bookmarks extensively in my Powerpoint hyperlinks with the required format of [document path]#[bookmark name] so that the reader can link to specific pages in a companion Word document.

About two weeks ago, all of the bookmarks mysteriously disappeared! The address of the document remains (i.e., [document path]) and activating the hyperlink still opens the document, but only to its first page.

Testing shows that the bookmarks are initially stored and still work. But when I close and reopen the Powerpoint document, the bookmarks, but not the document paths, are all gone!!!!

I am suspicious that the problem is a bug or new security feature that came with a recent update.

Any help would be VERY much appreciated.