This morning I went to Apple Support and started a chat with one of their reps. As usual, they were very nice, but, unfortunately, not very helpful this time. They recommended going back to Outlook 2013. Sadly, I'm even having difficulties getting the 2013 version of Outlook to sync. For those that have an Office 365, there is a clunky solution that I am using: the Outlook app for iOS. Of course you then have two sets of contacts, calendars, etc., but for the time being it works. While I love my iPhone (I've had one since they were introduced), Android (or, god forbid, Windows phone) is looking better and better. Even if Apple fixes this soon, I'll be taking the others into serious consideration for my next phone.