Multi Card does not render horizontally

When I add 3 measures to a multi row card, I can force the card to render vertically (3 rows down the page) or horizontally (3 results acrosss the page) by resizing the card appropriately.  However when I add a column (set to do not summarize) with a List Of 3 Values and a single measure, the card will only render vertially.  It will not render horozontally.