Are they present in the table in the app?
If so, the Editable? attribute for each of the three columns is likely set to OFF because the columns contain a spreadsheet formula. A columns with a spreadsheet formula can never be (directly) modified by the app user.
These three columns don’t get values until after the now row is saved in the spreadsheet; the spreadsheet formula is only applied once the new row is saved. Before that first save, the columns of the new row have no value. A column with no value that is not modifiable by the user is automatically hidden in forms by AppSheet: why display a blank column the user can’t change?