Page composer personalization's are not migrated - Attribute "p1Pce"

Hello Team,

While running VBS tool for many of the Business Processes, we are seeing one common "Page composer personalizations" entry saying as "Following Page composer personalizations are not migrated.". Below are the complete details.

Attribute : p1Pce
Display Name : Panel Collection Edit
Personalization : addRendered = #{securityContext.userInRole['has list of Roles']}
Reason : Attribute "p1Pce" is either not available in the Redwood page, or it is available but cannot be personalized in Business Rules. Go to VB Studio for this page and confirm if the corresponding field is present, and you are able to personalize it.

We are not abl see such field in any of the page! Please help us in understanding this one.