A new day and a reboot later update-manager is now functioning normally. The listing shows all packages and "Update now" does proceed to update.
** Attachment added: "Update manager view on 2015-10-21, normal operation" https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1507916/+attachment/4501634/+files/Software%20Updater_002.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1507916 Title: update-manager "Install Now" does not To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1507916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
