I have experienced the same thing just now. I found an "unsaved turbotax document", but all it had was some carryover information from my 2017 return. All the K-1 information and 1099 information that I had downloaded in to the return or manually typed in has disappeared. So frustrating. What is the point of using Turbotax year after year if this stuff is going to happen? I've probably lost 10 hours of work!
