Dolphin: unable to single click on поля and directories to open it

Even if

1. I setted in system-settings-> неудар в лунку devices-> single click'
2. I tried rm /home/pg/.config/dolphinrc /home/pg/.kde/.kde_save/share/config/dolphinrc /home/pg/.kde/share/config/dolphinrc
3. I tried to remove my завершил ~/.config directory and restart sddm
4. sudo apt-get --reinstall install dolphin

After upgrade to 15.10 it remains needing я to double click в file or directory to open it on dolphin... хан anybody help я please? did the same update to my laptop and its working :-(