Why a column does not appear as a selection when i press the "View By xxxxx" in Card view

When I am in Cardview I go to Card View Settings / Fields to display. I select 4 fields to display.

However, they do not show up as options when I want to change the views by different columns.

  1. How do I get these items to show up after I selected them in the Card View Settings?

the columns are text/number columns I am trying to display.

  1. Also, is there somewhere I can get a better understanding of the rules that need to be in place for a field to work?

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