CbCR Table 1 & 2 Summary Not Populating

Summary:

Table 1 & 2 Summary for CbCR is displaying the message "There are no valid rows of data for this form".

Content (please ensure you mask any confidential information):

I have automation rules defined against book data and I can see this info on Table 1 under CbCR Data Entry card. Likewise, I uploaded all business functions for Table 2 via Smart View. I can see the entries when I go entity by entity under CbCR Data Entry card. However, when I try to view this data via the CbCR Summary Card (view all entities in a list at once), we get the message "There are no valid rows of data for this form". Feels like this should be something simple but not really sure