If I remember correctly the broken error messages were the one from this issue ( https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1524196 ) as they appeared around the same time.
** Changed in: apt (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1522988 Title: stdout and stderr are not synced on lines Status in apt package in Ubuntu: New Bug description: I'm using Ubuntu 16.04 dev with apt 1.1.3 and I'm noticing that for example if on executing "apt-get update" error messages are shown they are often broken. They are missing sometimes characters which seem to be splitted across multiple lines. It looks that apt doesn't ensure writing complete lines if stdout and stderr are used. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1522988/+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