@Power BI Admin Ciel Thanks for reaching out.
As per your workflow screenshot, I can see your Insert row (v2) action is outside your for each 2 loop. This (Insert row (v2)) action should be inside your foreach 2 action so all the 16 iteration the insert row should be execute and inserted to the SQL DB.
In your insert row V2 action make sure you are passing the value correctly as per your table schema.