Just looked again, I now have labels saying parent 1's side, parent 2's side and unassigned. Where I had already put in maternal or paternal side, no new label has been added, so I don't have confirmation. One at least of my matches where Ancestry has identified a common ancestor which I have verified, has been labelled unassigned, even though I have four shared matches with that person , three of which are now labelled Parent 1's side (my father) and the other I had already labelled paternal side. This one now has a little note "This match is on your Parent 1's side. Do you want to change Parent 1 to Paternal side? This will label all Parent 1 matches Paternal side and Parent 2 matches Maternal side".