Problem with multiple return in XQuery Match Assertion

I have the same problem, please help me
the XML response of service is like below:

<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
   <S:Body>
      <ns2:transferSummaryResponse xmlns:ns2="http://service.y.modern.t.com/">
         <return>
            <currency>IRR</currency>
            <transactions>
               <count>1</count>
               <totalAmount>10</totalAmount>
               <transactionStatus>READY_FOR_PROCESS</transactionStatus>
            </transactions>
            <transactions>
               <count>1</count>
               <totalAmount>20</totalAmount>
               <transactionStatus>SUSPENDED</transactionStatus>
            </transactions>
         </return>
      </ns2:reportAchTransferSummaryResponse>
   </S:Body>
</S:Envelope>

I use Xquery Match for assertion . and XQuery Expression has value

declare namespace soap='http://schemas.xmlsoap.org/soap/envelope/';
declare namespace ns2='http://service.y.modern.t.com/';
<Row>
{
for $z in //ns2:TransferSummaryResponse/return/transactions
return data($z/ns2:totalAmount/text())
}
</Row>

and code in the Expected Result

<Row>10 20</Row>

but i get the below error and assertion failed:

XQuery Match Assertion failed for path [declare namespace soap='http://schemas.xmlsoap.org/soap/envelope/'; declare namespace ns2='http://service.y.modern.t.com/';   { for $z in //ns2:TransferSummaryResponse/return/transactions return data($z/ns2:totalAmount/text()) }  ] : Exception:org.custommonkey.xmlunit.Diff [different] Expected presence of child nodes to be 'true' but was 'false' - comparing   at /Row[1] to   at /Row[1]

can anyone help me? please help me
thank you