I am using IC6.1.6-64b.500.1 and my simulator version is 10.1.1.296.isr18 64 bit.
When I simulate old circuits (designed in IC6.13) containing analogLib/nport component I get this error:
"ERROR (OSSHNL-524): Netlisting failed as function hnlNetNameOnTerm was called with a non-existent terminal name on current instance 'NPORT0' in design