unable to retrieve the correct name from a node in a step file

Hi guys,

I have a step model which I try to load. However, for some reason I can't retrieve the right names for the nodes.
All I get as a node name, is "_" instead of DIVERTOR_RH_SYSTEM for example.
What am I missing here?

Have added a code snippet which shows how I retrieve the node name, and a snippet of the file itself which shows the names.

Can you help me please?
Thanks in advance!