From CNA:
Monsignor Maurizio Gronchi, an expert consultant for the Dicastery for the Doctrine of the Faith at the Vatican, clarified that the measure established last month regarding the use of the titles “Co-Redemptrix” and “Mediatrix” for the Virgin Mary is “not an absolute prohibition” and that these titles can still be used in popular piety, provided their meaning is understood. Gronchi explained that “the issue is an old one. This problem has been discussed for 99 years, since 1926. We have studied it on several occasions, and the dicastery has received numerous requests for clarification regarding these terms. These titles present a problem. There is a risk of obscuring, of not clearly explaining that the centrality of the paschal mystery of salvation lies in Jesus Christ.”