"Go To Page" functionality no longer working in a document

[ravl13]

Hello,



I have a word document with a table of contents. Here's an example page of the first TOC page:

https://imgur.com/rJqHiVK

You can see I have Chapter 1, which has a first page of "1-1" for example, then "1-2" etc.

When the 2nd Chapter starts, the numbering for the first page is "2-1".

This pattern repeats for the rest of the book.

My issue is that the Go To Page functionality of MS Word has stopped working on this document, once I try to go to a page beyond 3-11, which is the final page of chapter 3. If you attempt to go to page 4-1 or later in the document, you get a "cannot find page error".

https://imgur.com/SHoqFeX

I am able to jump to page 3-11 or earlier, without problem.

Pages like 5-2 definitely exist, but they cannot be "jumped to". Here's 5-2 for example:

https://imgur.com/gPZ1MkL

I've updated the Table of Contents by right clicking it and doing the normal "Update entire ToC" functionality, but the issue persists even after that.

I have other documents made from the same template, that do not have this issue. However, this particular document that is giving me trouble was transferred to someone using Microsoft Office for Mac to have some content added to it (rather than a windows version of MS Office). I can see that the original copy I sent this person does not have this Go To Page problem. However, we've done a lot of work to the document since then, so I need to use this problematic document since it has all of our changes, even though it has developed this inability to "Go To Page". So, it's very likely that the document being worked on a Mac was the cause of the problem, but even knowing that, I don't know how to fix it.

Any ideas on how to resolve this problem?