Hi,
If you are generating the script by importing a wsdl file please try analyzing it separately with both available toolkits:
.Net Framework
Axis/ Java base Web Services Framework.
Additional option is to import a working soap request.
If these options do not help, please open a case with support giving details about the LoadRunner version you are using and please provide the script and the wsdl file so that the issue can be investigated in more details.
Kind regards,