Hi @Eco-Just_Food_Networ ,
Welcome to Airtable Community !
The reason you see the field with its old name is because you did not test the automation from the start again. Meaning, you need to choose a record to Trigger / Test again, this will bring the new field name. IF the field is coming from another step, you need to test all the steps from the start (generating a preview doesn’t change the table data so no need to worry).
If this helps, please mark it as a solution