This is a known issue.
We are tracking it here on Gitlab: Lookup of Lookup fields appear as JSON and cannot be used in many functions (#1027) · Issues · Bram Wiepjes / baserow · GitLab
And here is a related post: How do I Sum If? - #19 by Alex
This is a known issue.
We are tracking it here on Gitlab: Lookup of Lookup fields appear as JSON and cannot be used in many functions (#1027) · Issues · Bram Wiepjes / baserow · GitLab
And here is a related post: How do I Sum If? - #19 by Alex