BJT based mutivibrator pspice simulation in CADENCE ORCAD
I'm not familiar with your particular taste of SPICE (pun intended), but this is actually a very fun and well-known example about simulated vs. real circuits.

Solution: Your circuit is in perfect symmetry, and thus, it won't start. Try 150.001 nF or 82.001 k&Omega; for one capacitor or resistor, and chances are it will kick into oscillation.

As long as you keep the symmetry, both transistors will "come to action" in exactly the same way, and the circuit won't start to oscillate.

(It won't oscillate in LTspice either, for example - and maybe there is some rounding error in multisim that will start the oscillation. LTspice even has this circuit in the demos that are provided with the download, and it has one 100k resistor and one with 101k, IIRC.)

A real circuit will never have exactly the same components twice, so it will start to oscillate with no problem. It's very educating that  imperfections are an absolute requirement for one of the most well-known basic circuits in electronics to work at all.