Susanne, if the only sources for a profile are user-generated trees, such as Ancestry trees, Geni.com, MyHeritage, nosorigines, even FamilySearch trees, just to name a few [there are many others], then the profile is still considered to be unsourced for the purposes of the category. If that is not the issue with the one you found, please let me know which profile it is and I'll take a look at it!