This issue has now been resolved for me. I discovered via this question: https://answers.launchpad.net/ubuntu/+source/gnome-control- center/+question/206580 that in fact my issue was not a bug but a settings problem.
** Changed in: gnome-settings-daemon (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/994506 Title: System restart causes all customized keyboard shortcuts to become disabled or return to default settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/994506/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs