Error "There's a slight problem Parameter "1" must be above Parameter "2" in Display order, for cascade rule
This form had 3 fields that are related to the error. The first 2 fields on the form were drop downs. We were trying to add display logic for the the 3rd field based on the values chosen in the first 2 fields. The error was seen every time we tried to save with the display logic.
Steps to resolve: Drag the 1st field to the 2nd position and save the form. Drag the fields back into the desired order and save the form again. It seems that reordering the fields and saving the form resolved the confusion of the field order.