I cannot see all my active columns in edit form in Sharepoint list

I created a Sharepoint list from scratch and when I add a new item the form to fill out that opens has all the fields from each column. Then, I created 2 more Sharepoint lists with preloaded data from an excel spreadsheet.
One of them retained all the fields of each column to be able to edit them.
But the other one, is only displaying the fields that do not have any data in it, but I still need to have some of the preloaded data fields displayed to update the data if needed.