Fireplace being used to exit and enter area

This is a well known bug from Island Living. Delete the fireplace, make sure there are no random Islanders hanging around inside, then lock the door for everyone except household members. I have noticed several different spawn areas in Sulani while my Sims are walking their dogs, and some of those don't make much sense as to where they are located. There just seems to be more than what we usually see in the worlds. I'm not sure if this is because Sulani is made up of several islands, but it's a bit strange when a Sim randomly pops up then disappears after a few seconds. Then there are times when one or two Sims will spawn during the beginning of taking a dog for a walk then follow my Sims the entire time. Almost as if they are stalking my Sims. But the fireplaces do act as a spawning point for vendors so having one is basically useless until someone at EA fixes it.