I think this is a bug, or maybe I am doing something wrong, or maybe it needs to be just a suggestion.
When I create a card view, I understand only the first columns 20 columns are visible.
It seems any columns after the 20th will never appear on the card.
I tried hiding and unhiding, dragging them to the top, and even changing them in the order of the original table. A very thin spacer (1px) seems to appear when I enable one of these columns so something is appearing on the card, just not the content of the column.