I also see this. A workaround seems to be to use the "Advanced search" link from the portlet in the right column, which takes you to https://launchpad.net/distros/ubuntu/+bugs-advanced
I also see this. A workaround seems to be to use the "Advanced search" link from the portlet in the right column, which takes you to https:/ /launchpad. net/distros/ ubuntu/ +bugs-advanced