All circles show in 1 very long column

The Circles gallery continually shows only 1 column while ignoring that it is set for 4 on computers and 3 on tablets and 2 on smartphones. This problem just recently happened. The display was fine for over a year. Here are 3 pages that I can’t seem to straighten out.
https://rvr87.com/our-team/members/
https://rvr87.com/our-team/mentors/
https://rvr87.com/our-team/team-alumni/