I collaborate with https://www.geni.com/people/Martin-Eriksen/6000000003820375913
Since I collaborate with a good handful of people, I often choose to see matches from specific collaborators. When I see matches for all collaborators I get hundreds of matches from Martin, but when I choose him as specific collaborator I get no matches. "There are currently no Tree Matches for that collaborator."
How to sort this? As far as I can tell from random tries it is only this collaboration this happens with, no others.