Learning how tu use the software. I drew elementary circuit:power supply (12V),390 Ohm resistor, LED , Voltage probe1 to 12V terminal , other probe to LED (anode)and katode to ground. In the simulation graphic both probes have 12 V (open circuit).
I changed led by other 390 Ohm resistor. Now the simulation works. Probe1 level 12V and probe 2 level 6V.
What is wrong?
