I am able to reproduce the error every time in a VirtualMachine. I am available for a demo through a video conf tool if you need help to reproduce.
Steps ===== 1. Install Ubuntu 16.04.2 LTS in French 2. Add Google Chrome sources for instance in /etc/apt/sources.list.d/google.list 3. `apt-get update && apt-get dist-upgrade` 4. In Software & Update accept to get distribution update even when it is not a LTS 5. Run `update-manage -d` and accept to upgrade. You should see the following error and screenshot. ** Attachment added: "Screenshot of a reproduction of the error." https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1639743/+attachment/4774792/+files/demo.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/1639743 Title: `&` in french translaction "Logiciels & mises à jour" should be escaped as `&` Status in software-properties package in Ubuntu: Incomplete Status in update-manager package in Ubuntu: Invalid Bug description: When running update-manager in French the "Logiciels & mises à jour" sentence make the update-manager to fail with an empty dialog. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1639743/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp