Formula not auto-populating

llambert39581 ✭✭✭
edited 12/09/19 in Smartsheet Basics

I have several sheets that are identical. I actually created the additional sheets by using Save as New.

In all sheets when I enter an open date, follow up dates are supposed to auto-populate based on a formula (example =[Open date]12 + 2). In some sheets it is working fine, in others sheets, it is not. What could be different?