This message occurs when clicking on the Styles property editor to view the list of InDesign styles or QuarkXPress style sheets, if some of the QuarkXPress or InDesign files used by the current script have not yet been rescanned since listing InDesign styles and QuarkXPress style sheets was added as a feature of scanning, at the end of 2022.
You can accept the solution to re-scan all the QuarkXPress or InDesign files used by the current script, now, or proceed anyways, knowing that the displayed information will be partial (possibly blank).
Topic 187020, last updated on 30-Dec-2022