I try to import UA Nodeset-Files (from https://github.com/OPCFoundation/UA-Nodeset) into modeler tools like
"FreeOPCUa Modeler" (https://github.com/FreeOpcUa/opcua-modeler)
or "Unified Automation Ua Modeler"
(https://www.unified-automation.com/downloads/opc-ua-development.html)
or into the
docker based OPC UA Server from Hilscher (https://hub.docker.com/r/hilschernetpi/netpi-opcua-server).

I do not succeed with any of the standard Nodeset-Files (tried robotics, vision, machinery, machine tool).
The usual error (from FreeOPCUAModeler) is

"The parent node id does not to refer to a valid node."(BadParentNodeIdInvalid)"

Might be certainly all a question for the vendors/providers of the modeler tools,
BUT, do you maybe have a hint, if there is somewhere a tool, which allows a smooth import and (implicit) validation of nodeset-files??

THANKS A MILLION.

Best regards,
Ruediger