I exported the users of my list #1 and tried to re-import them into list #9.
My reason for doing this was to rename list #1 as my test list, so that I do not inadvertently send out any messages to this list, as I did once.
For some reason I was unable to import them, even though I assigned the correct fields, etc. in the dialog box. Please advise why no records from my list #1 users (now in a csv file) go into into my list 9.