I was running a survey last year which is not anonymous and uses tokens. In the responses table, I could see each respondent's full token, first and last name, and their email address, and all of these fields could be exported.
I made a copy of this survey because I needed to add a question to it. Now though in the responses table, the first and last name and email address aren't listed. The columns for those fields are still there, but it is just blank underneath it. Also, the token for some reason is cut down to half its full length.
I don't know why, if I copied over the survey, these details are no longer recorded in the responses. I hope someone can help me, I've search online and in the forums and I haven't been able to find a solution to this.