Do you have your lot locked (or protected or whatever it is named)? I mean your Sims can move out when you are not playing them or they have a house with their family name in it?
Most of the problems I'm getting in my game are coincidently in lots that are not allowed to carroussel (or musical I don't know) move around.
In one of the locked families one member stopped aging (only one). I accepted him as a new Peter Pan. Every locked house present a different problem.
It seems that this move around is to hide a serious problem - some hours playing and the houses get screwed up. For "story mode" meaning (?)
I believe you're refering to the ingenious option which is included in the Awesome mod from pescado. Which if you have Awesome mod you name the lot the same as the family name and the sims are tethered their humble little abode, if you have story mode enabled that is. Of course if your also saying that your "locked" houses begin to screw up after hours of playing with story mode on the simple fix would be to turn story mode off if it bothers you. However with story mode off the unlocked houses don't progress or move or have larvae. Which putting those statements together would basicaly be saying, yes, it's a serious problem with tethering families.
I do not have Awesome mod and there fore have never run into the problem and haven't recently seen any new topics about it. You could always start one in the Awesome mod group (don't know specific location but you have eyes and fingers too).