January 11 – Sign-in issue with old mobile apps
1:55 PM UTC. It is currently not possible to sign-in to our old mobile apps. We are working on resolving this as quickly as possible.
January 12th, 5:17 AM UTC. A recent update, that was rolled back, is thought to have caused this. The root cause is still being investigated.
January 18th, 5:1p AM UTC. The issue has now been resolved. We apologize for the inconvenience caused due to this. We are investigating the root cause of this issue and will take actions to ensure this does not happen again.