Scan Config: Invalid WSDL File

When attempting to add a WSDL file to a scan config in Rapid7, the following error is shown:

Encountered error when parsing uploaded file request Invalid WSDL file:
class org.ow2.easywsdl.schema.DefaultSchemaImpl cannot be cast to class org.ow2.easywsdl.schema.api.abstractElmt.AbstractSchemaImpl (org.ow2.easywsdl.schema.DefaultSchemaImpl and org.ow2.easywsdl.schema.api.abstractElmt.AbstractSchemaImpl are in unnamed module of loader org.springframework.boot.loader.launch.LaunchedClassLoader @2d98a335)

The WSDL file in question describes an ASP.NET Web Service utilizing SOAP, and is parsable by other applications, such as Visual Studio.

Is there something I’m doing wrong, or is this a bug?