Microsoft published an update for outlook 2013 on August 12. It was suppose to fix several things.
Sadly it also introduced a bug where you could not get access to Exchange archive in some circumstances.
Well so it happens that Microsoft has now reacted and pulled the update for further investigation. If you have already installed this patch and encounter problem you could easily uninstall it.
Read KB2881011 for more info.
So another update that introduces problem. It feels like Microsoft don’t test updates that much anymore My guess is that the “Cloud/Mobile first” mantra Microsoft advertise makes the internal processes at Microsoft spin a little to fast and then quality is sacrificed. This is something we have seen the last year and I can only hope it gets better.