I’ve been using postman for years, but just started a new job and getting everything set up fresh again. I created a collection and a half dozen requests, but after restarting Postman my collection was gone. I’ve since testing creating new collections, exiting and restarting, but no collection I create is persisted. I’m logged in, so what’s the issue here? I’ve never noticed this kind of issue in the past.
@derekgreer Welcome to the Community 
Sorry to hear about the situation 
Did you tried logging a support ticket? If not, you can try to do so 