You can pass the node to the main circuit and print it out at the top level for the version you have. I saw the different thing. This is much more dangerous than giving an error message. I got the same result as HP version without the underscore. Here is my condition for a verification.
Error message is much better than a silent mistake.
Connectivity check for switches failed. Die Solution Change node name from 060 to 60. Note the first line of the below error message. You maybe specified open node or undefined node to print out. In the below example, I forgot to erase node 26 in print statement, which was inside comment block.