Anyone else seeing the following.
Using the standard CRM and not the addon Marketing. In the UCI create a new Marketing List as Dynamics for Contacts, Manage Members and add a simple filter criteria eg. First Name begins with A. All Contacts are returned in the Query Results and are added as members of the list. (If I go back to the classic interface and perform the same actions then the query results are filtering correctly)
Am also seeing the same issue in new Trial and an existing customer instance.