The `node_balance_t` sheet is not copying the non-zero values for upward slack. <img width="3781" height="1445" alt="Image" src="https://github.com/user-attachments/assets/4382af7b-1176-4726-b4e7-eb6d22bbd5cd" /> However, the non-zero values can be seen in the `slack_upward_node_state_period_t.csv` file. <img width="3545" height="1340" alt="Image" src="https://github.com/user-attachments/assets/465f5065-3631-47e4-aa00-0c9695cb0e87" />