In CARD view, my contact card OWNER column is not listed as a "VIEW BY" option

edited 05/07/24 in Smartsheet Basics

I have a sheet that has assigned owners. The owner column is a Contact list type. Contacts are added individually via the column property window. However, I in CARD view, I OWNER isn't an option under VIEW BY. When I edit the lane to add OWNER, it says "Column name is already in use in this sheet"