Word document converted to PDF shows very large bookmarks in Acrobat reader in iPad.

I converted word document to PDF to make them easy readable with Acrobat reader on an iPad.

Up to recent, I could scroll through the bookmarks to look-up the aplicable chapters.

Now - apparently since version 24.02.02 - the bookmarks are shown in a very large font size (much larger than in the previous versions). As a result, it only shows 2 or 3 bookmarks in the bookmark dropdownbox. This makes scrolling in larger documents (say >30 bookmarks) inconvenient.

How can I get the bookmarks back to initial size ?

See attached screenshots examples of current (24.02.02) and the more convenient older (23.07.01) version.