User Profile

I've been experiencing an issue that has causing me a lot of problems, as various apps including Whatsapp, Telegram, Linkedin, Slack, Lastpass, and more will randomly log out, and reset back to their inital state as if I just installed it on a clean phone. Apps like Whatsapp and Telegram will have lost all of their chat history, even if it was backup up on iCloud.I'm at a total loss as to what might be causing this problem after restoring the phone multiple times (the last time without restoring to a backup).My phone is an iPhone 6S 64GB running iOS 10.2 (isn't BETA).