MS Forms to "Generate document from Word template" Invalid Parameter with "long answer"

[Web Team36150423z8kw]

I am trying to populate a Word document template from a Microsoft Forms response I am doing this using the "Generate document from MSFT Forms data and Word template, send via E-mail" flow in Power Automate which uses the  "Adobe PDF Services" connector.

All the template fields get filled-in fine if the form field is a single text field line, but if any field is a textarea... called "Long answer" in Forms, this results in an "Invalid Parameter" error.  

I cannot find any information on how to insert the relevant field in the json in such a way as it does not throw the error each time.

Has anyone else had this problem and can you suggest anything we could try?

TIA

[Web Team36150423z8kw]

We have tried the two ideas suggested here: by @Ben Vanderberg , i.e. remove quotes or add an initialize variable step. We still get the Invalid Parameter error.

If I test a form using the long answer fields but without line breaks in my response then the flow seems to work, it only breaks when a response contains linebreaks,  e.g. a list or a number of paragraphs.

[Web Team36150423z8kw]

Any ideas?  It should be possible to include a textarea as well as a single text field?