Pathing problem at the edge of the lot/street

[Fyendiar]

I'm having a weird problem with the pathing in a new small 1x1 house I am working on.

http://img266.imageshack.us/img266/6767/errorqy.jpg

There seems to be something at the red cross that the sims can't walk through, they just walk around it. However sometimes they just walk through it.

At first glance I thought it wasn't a big deal, but the problem is that when I want to send a sim to a another place in town from inside the house he just throws a tantrum and tells that he has a pathing problem.

Any idea what could be the cause of this and how to fix it?

Thanks.

[fluttereyes]

Have you tried bulldozing the lot then replacing it from the library? I've had a couple of houses like that and sometimes that works. I find it happens more with lots where the stairs are so close to the edge of the lot too.

[Fyendiar]

Bulldozered, replaced, placed elsewhere in town, used CFE to flatten everything at each lvl (for as close I could get to the edge) and still having the same problem. You may be right that it has to do with the stairs being close to the edge, if so then I hope it's a bug they will fix soon. :)