Try creating a new user, then tell us if the new user still has the problem, if not, then just remove the whole ~/.config from the user number one and copy the whole ~/.config from the new user (you will just have to do a "chown -R user1.user1" on the ~/.config directory from user2 once copied there.
You could also do the copy directly from /etc/skel/.config. This way : move the .config from your user out of the way, from console:
$ mv .config .config-save //it is saved, not removed !! incase you need some configs from another of your user application that is in there
$ cp -R /etc/skel/.config /home/user
Replace the words "user", "user1", "user2" by the relevant login name you use, whatever solution you decide to try.