Attributes dissappear from the formula variable after upgrade

Hi,

We have upgraded from 3.X to 7.X. When i run the reporrt, i get the error saying that attribute XXXX for characterstic 0object in variable ZFormula variable couldn't found.

When i went and checked in the formula variable, under replacement path

Replace variable with

Info Object

Replace With

Attribute value

Attribute

I couldnt find my XXXX attribute but with error mesage.

I tried to create a same formula variable,but could't find the XXXX variable under ATTRIBTE.

I coldnt find the proper solution or note. Did anyone had issue like this?

Thanks

Annie