Error with Composite Templates retrieving Recipients View - docusignapi

Question

We are trying to create a composite template using 2+ templates using the REST API. We create a draft envelope first from the templates, then send the envelope.
We call the REST URI:
https://demo.docusign.net/restapi/v2/accounts/e3a6986d-edb6-465d-8b7a-782867f37dd8/envelopes
with the JSON
Body:
{
"status": "created",
"emailBlurb": null,
"emailSubject": null,
"eventNotification": {},
"compositeTemplates": [
{
"serverTemplates": [
{
"templateId": "4da7730b-fc1a-4ea1-bcd9-bc7e55e13271",
"sequence": 1
}
],
"inlineTemplates": [
{
"sequence": 1,
"recipients": {
"signers": [
{
"roleName": "RoleOne",
"recipientId": "49c9c05b-b0c2-4c68-8260-28b574119e7f",
"name": "Tester N",
"email": "YYYYY#gmail.com"
}
]
}
}
]
},
{
"serverTemplates": [
{
"templateId": "3ae253af-4884-4185-9354-b80f37511ce4",
"sequence": 2
}
],
"inlineTemplates": [
{
"sequence": 2,
"recipients": {
"signers": [
{
"roleName": "RoleOne",
"recipientId": "ee3cb7f5-8c38-4790-af81-2c49726e27c3",
"name": "Tester N",
"email": "YYYYYY#gmail.com"
}
]
}
}
]
}
]
}
This creates the draft envelope, and we can access it and retrieve the tabs. We get the signers information for each template separately with a call to Get Recipients Status
/accounts/e3a6986d-edb6-465d-8b7a-782867f37dd8/envelopes/#{template_id}/recipients
then we "send" the draft envelope using
PUT https://demo.docusign.net/restapi/v2/accounts/e3a6986d-edb6-465d-8b7a-782867f37dd8/envelopes/476ad2d1-2134-402d-9404-ed04df15508f
{"status":"sent"}
and the response is
status: 200 {}
Finally when we try to get the recipients view to show it to the signer using
/accounts/e3a6986d-edb6-465d-8b7a-782867f37dd8/envelopes/476ad2d1-2134-402d-9404-ed04df15508f/views/recipient
We get the error response:
{"errorCode"=>"UNKNOWN_ENVELOPE_RECIPIENT",
"message"=>
"The recipient you have identified is not a valid recipient of the specified envelope."}
Can someone please help determine what we are doing wrong?
Thanks
LON