That happened to me once, in Three Lakes. Saw one of the lumberjack-looking locals chest pounding with himself 

It only happened the one time, as far as I can remember. I've gone on vacations since then without this happening again. It would be nice to know what causes it though.

UPDATE:

Okay, I figured it out! Yay!

In my custom neighborhood Ambrosia's storytelling file, all vacation and household photos taken by sims (except Twikkii ones) are named nsnapshot (then a bunch of random letters and numbers), then nthumbnail, and then plain old snapshots and thumbnails. But wayyyyy down at the bottom, under everything, are the stupid Twikkii pics, called tsnapshots and tthumbnails. Just the sim-taken photos, mind you. The ones taken by pushing "c" end up with the regular old snapshots. Messed up.

 At first I thought, "Oh, T for Twikkii right??" But Three Lakes and Takemizu also start with T so...oh well. EAxis is just plain weird.

 Thanks for everyone's help anyways--thought I'd post this because, well, everyone should know right? And there might be people out there like me who, well, don't know.

Not that Prima is the most reliable of sources, but the official BV guide says all Takemizu locals have high creativity and golden gardening badges. But it also says Twikkii locals should have high charisma, outgoing and playful, and that Three Lakes locals have high body skills and maxed fishing badges.

 The actual list says:

 "Takemizu Local Simology:
High Creativity Skill
High Nice
High Neat
Gold Gardening Badge
Disliked Gesture: Mountain
Increased Relationship Requirements for Kiss socials
Increased Relationship Gains from Gift social
Increased Relationship losses from Irritate and Prank socials"

Hope this helped

I try not to assume that everyone knows what every little term means--people have done that to me all too often. When UNI first came out, I thought the feature was only available for students.

To merge her household with her brother's (or any other house with less then eight sims), just click on her in the family bin if you have UNI or any expansion following it, and then click on the house you want to merge her with. It'll ask "Do you want to combine the 'x' family with the 'x' family. Click yes.

I don't know, I've got over 10,000 pics in Pleasantview's storytelling folder, and that's only taking up like 60 megs. Still, it's impossible to sift through them all sometimes.

You could just merge her back with an existing household (but I suppose this wasn't the answer you were looking for as you made her move out in the first place).

When you say "folder organized by name", do you mean EA Games/Sims 2/Neighborhoods/N001/Storytelling? If so, yes. The ones from Three Lakes and Takemizu vacations that were taken in Pleasantview, for example, are in the above folder, at the top, above the pics sims took at home, and the pics I took with the original camera.

 Did the game mess this up and put the Twikkii ones down farther than the regular pics? They could be way down there as I am a photoholic and have over 5,000 total snapshots and thumbnails in the storytelling folder for one of my neighborhoods.

Umm, okay...

 So I've taken my sims on several vacations since I got BV and never really bothered looking for their snapshots in their respective storytelling folders. Just recently I was thinking of using some of my Twikkii pics to make some new wallpapers and, well, they weren't there. I've taken 4 vacations in Pleasantview, 2 in Veronaville, 1 in Strangetown, and 3 and 1 in my two custom neighborhoods. They've all taken numerous pictures (or had tourists or locals take their pictures), and the ones that won't show up all have one thing in common--they were Twikkii vacations.

 All of the Takemizu and Three Lakes pics show up in their respective folders, with all the neighborhood, downtown and uni pics, as well as regular in-game camera pics, including regular camera pics from Twikkii (just the snapshots the sims take themselves won't show up).

 Am I looking in the wrong place? I just assumed that since my Three Lakes and Takemizu pics were with the other pics, that naturally the Twikkii ones would be there too...

Okay, I was able to get a new Diva. Thanks again. In case anyone couldn't tell, I'm new to NPC creation (it's one of the few things I hardly ever use boolprop for). Should I do this for a new maid or just wait for one to spawn? (It's not like I really need more maids after all).

 And one more thing, one of my sims recently married a Three Lakes local, will another one spawn in her place or do I have to do that manually too? (I don't mind, I didn't think manual spawning would be so easy).

Thanks!

 I tried spawning my own (using the boolprop NPC creator) and kept getting Mr. Big (I already have one). Would this have anything to do with the fact that I was trying to respawn a Diva on a lot where my ex-Diva lives?

 Also, I don't have any of the noregen mods.

 One more question, are maids or firemen considered "redundant", because I moved Remington London (a maid) and Neil Letourneau (a fireman) into a lot and I don't think I've gotten a new maid or fireman to replace them yet. My theory was they don't spawn until I hire a maid/start a fire, is that right?

Okay, I'm probably doing something wrong or putting something in the wrong place, but I've been searching this site for a while, it's late and my eyes are starting to hurt soooo...
 If someone already posted this problem I apologize:

 I have two neighborhoods going in my game (mine, and my sister's). We each have a romance sim who has asked a Diva to move in for the money, and in both neighborhoods a new Diva doesn't seem to be respawning. Hacks in my game are minimal (anti-redundancy, newest version of the insimenator, a few of christianlov's objects and some of squinge's pose hacks), I have all EPs and all SPs except H&M and celebrations.

 Is something wrong? I've restarted the game several times, gone to community lots with different sims (I heard this helps spawning??), and am contemplating using the NPC creator to just spawn one myself. Should I keep being patient, or is there something wrong and how can I fix it?

Thanks in advance --PyB