/usr/bin/unity-control-center:11:append_sections_from_gsettings:reload_sections:wm_window_event_filter:gdk_event_apply_filters:gdk_event_source_translate_event

The Ubuntu Error Tracker has been receiving reports about a problem regarding unity-control-center. This problem was most recently seen with package version 15.04.0+16.10.20161003.1-0ubuntu2, the problem page at https://errors.ubuntu.com/problem/615e72d6b8a79a9e1ccc82dafe724422ed9b6343 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.