Multisim Convergence Error on 555 Timer Circuit

[SanctePieDecime]

I built this circuit in Multisim and keep getting a convergence error. I took a closer look at the circuit during simulation and found that the error only occured when either of the 555 timers reached the switching point.

I cannot seem to find out what is causing this.

Additionally, the 555 timers do not seem to be sourcing enough current, when on, to light the LED, so if any of you would happen to know why that might be that would also be appreciated.

I have the 555 timers configured in a monostable mode with a capacitor connected between the trigger pin and ground so that it will just start the timer when the IC gets power.