I’ve got two sites where the woocommerce columns for coupons, attributes, and product variations have the columns set to display product order details as column headers (eg Order, Date, Status, Billing, Ship to, Total, Actions). Since this has no relation to what is to be edited, all rows are blank. When you hover over the blank rows, it does display the quick edit, edit, and delete options. The edit pages appear to work correctly, but it makes the listing page useless when you can’t see what you are about to edit.