xml webservice "Type {http://dom.w3c.org}Node is referenced but not defined."

[Manaus]

Hello, 

I'm testing Lucee version 4.5, and I'm getting this errors: 

<!--- webservice --->
<cfcomponent output="false">

<cffunction name="echoXml" access="remote" returntype="xml">

<cfargument name="xmlArg" type="xml">

       <cfreturn xmlArg>

</cffunction>
</cfoutput>

Invoking page: 

<cfset wsurl = "http://localhost:8888/monweb/cfc/weather.cfc?wsdl">

<cfxml variable="argXml">

<note>

<titolo>Ciao</titolo>

<content>Xml!</content>

</note>

</cfxml>

is struct? #isStruct(argXml)# <!--- yes --->

<cfinvoke webservice="#wsurl#" method="echoXml" returnvariable="resultXml">

<cfinvokeargument name="xmlArg" value="#argxml#">

</cfinvoke>

Beside interpreting the Xml doc as a struct, I get the error pointed out in the subject: Type {http://dom.w3c.org}Node is referenced but not defined.

Thanks for any suggestion