Still an issue in version 0.96.24.36 (Ubuntu 18.10 dev). Seems to affect just the "Other Software" tab.
** Tags added: cosmic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1323285 Title: Tab for "Other software" repositories isn't usable with keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1323285/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs