The field is not updated. How is this ?

Hi,
I am having problem with the fields where the ‘maintenance status field’ and the ‘timeline status’ fields would not updated its status. I have checked with the formula involved and nothing changed.

Should be the status is updated like this, but some of the data(status) is blank.

List2

Thank you.

Hi,
For this issue, would you mind to send us a ticket, by clicking on the “Need Help?” at the upper right corner of your database, so that we could check your formulas?