I had an 8-condition study, each copied from the same template, just different screenshots within each. All were tested. After my study went live, ALL the questions within one of the versions disappeared, and only the “thank you for your responses” (last page) was left. What happened?
Sounds like you might have accidentally created a new survey from scratch when you thought you were copying the template. I just did that myself and was really confused until I figured out that’s what I did.