Navigator -> Settings -> Link Settings / Page
When you create a new page
or duplicate an existing page...
Links currently on the page cannot see the new / duplicate page.
Assume you have PAGE-1 with 3 links on it.
You duplicate PAGE-1 and name it PAGE-2.
The 3 links on PAGE-1 and PAGE-2...
- will not "see PAGE-2".
If you then duplicate PAGE-1 to PAGE-3... the 3 links on PAGE-1, PAGE-2, and PAGE-3...
- will not see PAGE-2 and PAGE-3.
Exiting the Project and Reloading it... fixes this issue.