Guys, I am the only one that think spitting out a “Warning: Singular matrix. Check node …” error messages is a fatal bug? Forget about “work around” and clever explanations. There is an infinity of scenarios where this problem can pop-up and can mess up everything. My example shows something tied just incidentally to GND. What about floating nodes? What about encrypted models? Having this kind of unsolicited net handling and random error messages will absolutely eliminate any chance of working out a complex circuit. You can have a few hundred such nodes all around. Would you agree this is not acceptable?