I simulated the circuit below:
The expected output is a 50% duty cycle 40 kHz square wave but the simulator (MultiSim) generates an error and doesn't compile. The error message is as follows:
"A simulation error has occurred. Would you like to run the Convergence Assistant to attempt to resolve this problem automatically?"
I ran the Convergence Assistant and that didn't solve anything.
Any ideas why this might be the case?