I've never seen that.
:cough: just to be sure :cough: Are you sure you type it right? If there is a mistake in the code (resetsam for instance), the game will give a message. But if you make a mistake in some of the input (faulty spelling the Sim's name for instance), I think nothing happens and no message either.
Test this with the general resetsim * maybe, and when your active Sims are not at home already.