I have a GW2014sp2 (server & client) user that when they receive a calendar invite from an exchange using organization it sometimes comes through with just a subject line & nothing else. Others in the GW organization can receive the same invite without issue. It is not something I have been able to reproduce every single time, seems to be random, but consistent enough to be a problem. I have not yet, but next time it happens I will check if it shows the same in webaccess as well (betting it will).