Hi @Stefan Schippers. I am trying to netlist an INA and am observing some errors I cant fix. Screenshot of the tb is shown. The INA is not my design, I am just checking something on it. However, when I try to netlist I get the various errors shown. Looking at these, to me it seems the symbol pins are not connecting to the nets in the schematic. For example, from the errors you can see all the PWR/GND pins are being reported as open even though they are connected at the tb level. Although I didnt design the INA, I had to create the top level symbol for it myself so maybe I did something wrong during this. Can you have a quick look to see if it is anything obvious. Attached are the .sch files / symbols used at the top and one level down in the hierarchy. Let me know if you would like to view others. Thanks. Diarmuid