Unable to populate data on Docusign Template using docusign envelope action element in Omniscript

We have created Docusign template in Docusign Developer account and fetched this template in Salesforce Org via Omnistudio docusign setup. The latest template was fetched in Salesforce org, we have invoked this template for e-signature in Omniscript Using Docusign envelope action element and have also invoked the respective data raptor transform which should ideally dynamically populate the data in Docusign Template when the data label is same as data raptor Transform Docusign Output field. Currently the values from DR Transform are not populated though DR transform is returning the required data.