I have a really weird issue. I have created a new Custom List with the default List content type. When I attempt to add a new item, a blank page is displayed. The NewForm.aspx page does not display any of the default fields (Title, Modified, Modified By, Created, Created By). I have tested to see if I add a custom column if any fields display. I can verify that a custom column displays, but none of the other default fields.
This site was recently migrated/upgraded from SP2010 to SP2013 On Premise if that helps.