IWS Migration from 1.5 to 2.6 SOAP - Save-Restore OK ... Redeploy KO

Hi all from Italy,
I'm trying to help one of my customer to migrate some SOAP web services
from an IWS 1.5 (on a 7.2 partition) to an IWS 2.6 (on a 7.3 partition).
Following those IBM documents (
https://www.ibm.com/support/pages/how-migrate-your-ibm-integrated-web-services-iws-server-v13v15-v26
and https://www.ibm.com/support/pages/node/1138636) it seems all OK:
1 Save WS from IWS 1.5 with saveWebServices.sh
2 Restore WS to IWS 2.6 with restoreWebServices.sh
3 Add rewrite rules on HTTP.CONF and restart the server
4 Test the old client (SOAPui for me) changing only endpoints
5 It works! All ok, no other modification to my old client

But if I stop my web service on IWS 2.6 (7.3), and try only to redeploying
it without any changes, something change in the WSDL and I got "Unexpected
wrapper element .../xsd" message from SOAPui "call"


soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/";>
<soap:Body>
<soap:Fault>
<faultcode>soap:Client</faultcode>
<faultstring>Unexpected wrapper element {
http://wspub02.wsbeans.iseries/xsd}dipendenti_list found. Expected {
http://wspub02.wsbeans.iseries}dipendenti_list.</faultstring>
</soap:Fault>
</soap:Body>
</soap:Envelope>

wspub02 is my WebService
dipendenti_list is one of the methods (procedures)

Why I can migrate but not redeploying services? Or

Thanks