Version: (using KDE KDE 3.5.2) Installed from: Ubuntu Packages On the first use the file open/close dialogs are very small and not usable until you resize them, see attached screenshot.
Created attachment 15452 [details] kfiledialog.png
Moving from "kio/kfile" component to "kfile" product, helps sorting out duplicates.
Works fine in KDE Frameworks 5.45.