using bus pin for inherited connection with AMS

I am running an AMS simulation that includes several gates with inherited supply connections.  The ground connection is one of many grounds and uses the bus name GNDA<21>.  This all works fine in the analog simulations, but when I run the simulation with AMS it fails and complains about all the inherited connections to GNDA<21> (explicit connections are ok).  I can make the simulation run by changing the inherited ground to a non-bus ground DGND, but I really want it to work with the tapeout schematic that uses GND<21>.   I suspect there is an issue with changing the inherited bus names to the verilog bus syntax, but I do not know how to get around that.  FYI, the gates in question are all in the AMS analog domain.

Is there a way to make the original schematic netlist correctly for AMS?

Thanks,

Darrell