List of my questions and my answers have disappeared in the new updated version today, though the data about how long I have been member, my location etc are intact. The reputation points have come down from 700 plus to 596.
So far as I can tell, your questions and answers are still intact; note that only 5 of each are displayed on your profile summary, but you can view all of them by clicking through to the questions and answers tabs.
Your reputation dropped a bit - like most everyone's did - because the reputation rules have changed a bit and is now recalculated continuously (so deleted posts don't count towards / against it). For details on the new reputation rules, see: https://mathoverflow.net/help/whats-reputation