Currently, by default, if an Element with a mapping set up also has a default value, the default value will override any data from the Salesforce mapping. It's possible to change this setting so that if mapping data from Salesforce exists (non-empty Salesforce Fields), it will override any default value set for the Element.
If you manually alter a field with either a default value or mapped value, the manually entered value will override that value.
Add the Config Field to the Form Page Layout
You need to add the Config field to the Page Layout of the Axsy Form Object axsy_forms__Form__c .
Add the Setting to the Config Field for the Form
In the Config field for the Smart Form enter "prioritiseMappedValuesOverDefaultFormula": true to ensure that mapped values will override default values for the Smart Form. Save your changes.