Hiya again
thanks for the tip, I did that, and it seamed ok at first, but then it started again, so I moved the family out of that lot and in to a fresh plot, but the shapes came back.  I really don;t know whats going on.
Thanks

No, nor are they visible at all times, generally they are, but some times i can zoom to a certain level and they are not visible.

I'm having a similar problem, in my lots where i forgot to remove the insim spawned thingys i have these weird black and yellow shapes.  I thought of using the lot debugger, but I can only find a version for FFS not any later, just wondered if anyone had any advice.

Thanks