Can you reproduce this bug with newer version of Ubuntu MATE?
** Changed in: mate-dock-applet (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1549164 Title: dock_applet.py crashed with AttributeError in button_release(): 'NoneType' object has no attribute 'activate' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mate-dock-applet/+bug/1549164/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs