First, huge thanks. This worked!

Second, why is the specific namespacing necessary if I have a default namespace declared?

I am using the OxygenXML editor to validate an XML document using XSD. I am using assert in the XSD document. However, I am unable to reference any nodes in my XML document in the assert test. I've set my XSD to v1.1 and I can successfully validate the document if my assert simply returns true (<xs:...