It's probably just a timing issue. The process to add DNA test connections to profiles only runs once a day, so it can take up to 24 hours before the connections appear on a newly created profile - see https://www.wikitree.com/wiki/Help:DNA_Test_Connections#Allow_24_Hours_for_New_Connections.
Don't think that's it; I tried to change it as you suggested but that only returns the error "A living non-member can only be Unlisted."