Re: Unable to enter buy/build mode while a sim is moving

@paasulla  Did you add all the sims to a different household with MC, then run an MC town reset, then quit and reload?  That's about as thorough an intervention as I can think of.

If this doesn't help, how attached are you to the town the sims are living in, as opposed to the sims themselves?  What about the sims' relationships with other sims outside their households?  There should be ways to keep your sims intact while sacrificing some other data, depending on what you're willing to lose.