Version: (using KDE 4.1.4) OS: Linux Installed from: Fedora RPMs The standard file open dialog has a problem when opening multiple files using CTRL-Click, but only in "Detailed view". If you use "Short view", which is the default, everything works fine: Holding CTRL and clicking multiple files selects all them. If inside the dialog you switch to "Detailed view" (F7 shortcut), this behaves differently: by holding CRTL, and clicking, only the last clicked file is "half selected", and multiple selection don't work. SHIFT-Click instead, works.
Works for me in KDE Frameworks 5.45.