Managed to reproduce this bug once with opening 'Systsem Setting' and then quicky opening and closing the various settings.
While doing this I also managed to trigger a number of other bugs:
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/943013
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/951570
https://bugs.launchpad.net/ubuntu/+source/jockey/+bug/734376
Looks like the infra structure under 'system settings' is a bit flaky.
Managed to reproduce this bug once with opening 'Systsem Setting' and then quicky opening and closing the various settings.
While doing this I also managed to trigger a number of other bugs:
https:/ /bugs.launchpad .net/ubuntu/ +source/ gnome-control- center/ +bug/943013
https:/ /bugs.launchpad .net/ubuntu/ +source/ gnome-control- center/ +bug/951570
https:/ /bugs.launchpad .net/ubuntu/ +source/ jockey/ +bug/734376
Looks like the infra structure under 'system settings' is a bit flaky.