did anyone encountered problems with sourced transaction line fields when deploying client script on a transaction record?

function saveRecord(scriptContext) {
return true
        }

        return {
            // pageInit: pageInit,
            // fieldChanged: fieldChanged,
            // postSourcing: postSourcing,
            // sublistChanged: sublistChanged,
            // lineInit: lineInit,
            // validateField: validateField,
            // validateLine: validateLine,
            // validateInsert: validateInsert,
            // validateDelete: validateDelete,
            saveRecord: saveRecord
        };

    });

after i deployed this simple CS with no functioning, the sourcing action stop working for this line item