Checked several apps, amarok, kopete (kdenetwork-4.6.95), and these are not saving their settings properly. Other apps did work ok, including k3b, konsole, konqueror.
Is this still an issue with 4.7.1 or did you just forget to close this?
(Upstream claims it's fixed in 4.7.0.)
confirmed, works all great for me since 4.7.0.