How can I remove the ellipses preceding each page number? (PDF)

[D.Desmet]

The index in my PDF shows an ellipses preceding each page number. Example:

parameters ... 61, ... 64, ... 67, ... 90, ... 105, ... 111, ... 115, ... 127, ... 134, ... 140

How can I remove the ellipses?

I looked at https://helpx.adobe.com/robohelp/using/customize-pdf.html (back matter > index page) and found that a.book-idx-link defines the page number layout. My book.css only contains the following for a.book-idx-link:

text-decoration: none;

[Peter Grainge]

Sorry I can't remember which version everyone here is on but I think it's 2020 for you.

Create a new project with just a couple of topics. Do you still see it? I'm not seeing the issue in a simple test.

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My site www.grainge.org includes many free Authoring and RoboHelp resources that may be of help.