I have an iPhone 6 that I regularly synchronize with Outlook. I use only Outlook for my Calendar and Contacts. I am running IOS 10.0.2 (the current version), and Windows 10 with Office 365. All of a sudden, and for the first time ever, the Contacts on my phone only include a small percentage of my Outlook contacts (seemingly a random sampling). I've tried re-syncing, but it doesn't change. I've been doing my iTunes Sync the same way for years, and even with this phone I've never seen this problem before. Please help.