Flow not working when trying to Create a Merged Doc with info from a custom CRM module w/ subform

I am having a problem creating a flow that gets its info from a webhook connected to a button in a custom module in Zoho CRM. I have made a template in Writer that follows:

This is a clone of the template in the CRM mail merge which works perfectly if i do it manually through there. My flow gets the custom module entry id through a webhook, then fetches the module entry data, and creates a merge document from that data. I know the webhook and the fetch work because if i replace the "create merge document" with "send mail merge" from the zoho crm options the flow works perfectly. Here is a picture of the flow:

However, the "create merge document" creates a doc where only a couple of the fields merge correctly. None of the fields in the subform merge at all. See below:

Is it possible to do a "create merged document" with a module that has sub fields/ a dynamic table? If not how would i go about solving my problem. Here what my flow ultimately needs to be:

1. User fills out module and saves

2. User presses the "Send Estimate" button which creates a merge document and depending on a choice selection in the module it either sends for e-sign or sends as a PDF through email.

3. Document link is either entered into a module field or the notes of the module entry.