You are using package from LP-PPA-ubuntu-mate-dev-fresh-mate (actually from https://launchpad.net/~ubuntu-mate-dev/+archive/ubuntu/fresh-mate ). It provides modern 1.26 version which is not supported here. Please keep on topic.
So if you can - please report bug to https://github.com/mate- desktop/mate-panel/issues about current issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1951219 Title: "Windows List" craches To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1951219/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs