More Awesome Than You!

Ok, I have this issue, and I don't know if anyone else does, but I have someone move in, and it shows their picture in the lower left hand corner next to my sims' pic, but this so called "roommate" is nowhere to be found! they have motives, and I have to do the "maxmotives"  cheat or else their motives go down as normal, (I have a problem with my lots not loading, so I read somewhere that having the testing cheat on at all times may pinpoint the error/object, and force load the lots. otherwise I cannot play my game because it just endlessly loads and loads, so I assume this is why I have control of my roommates without using the pets cheats) so to make a long story short, I have invisible roommates! this sucks, since I can't kick them out, or anything else. is there a fix for this? or does anyone have any ideas?

Did you try the lot debugger?  Clearing off-world loiterers?  Maybe there's a stuck sim in the way of him entering.  I dunno.