Receive Activity in BPEL only considering the last element in a hierarchial structure

Hello,

1. Create a SOA Service with a REST adapter.
2. Created NXSD schema with a JSON Interchange Format with JSON data input as below Header => Line Data Lines => Account

Header

Line Data

Line 1

Account1

Account2

Line 2

Account1

Account2

1. Create an inputVariable with Type as the XML element of Step 2
2. Create a Receive Activity and attached the variable created in Step 3
3. Deploy the SOA Service
4. Test the SOA Service
5. The Receive Activity on the Flow Instance only shows
6. Header => Line Data => Line 2 => Account2 and the rest of the data is missing.

Additional details with screenshots are attached in the document.