First of all I'm not sure what's up here, but I have an arcade in my downtown area. There is a gym across the street (well it's sorta, more across the street and next door.) While at the arcade I thought I'd have two of my sims dance together. There's music in the arcade via the community speaker. Anyway, the speaker was working, I even turned on the sound to see what kind of music was on and see if I wanted them slow dancing or club dancing. Anyway...when I clicked for them to club dance they both took off out the front door and ran all the way across to the gym to dance in front of the stereo in the aerobics part of the gym!

I thought this was just a fluke, but it's happened two more times and in separate plays (same town/save file, different times playing) This is all occurring in my Sunset Valley game and I'm afraid that I may have too many bad glitches at this point. I'm almost never able to save it without a effin Error 12 anymore, regardless of when I save or how long I play. This time I was only in game for a real time half hour and saved and got it yet again. Is there some way to check things to see if I can save my oldest and most favorite town or am I just shit outta luck?

Not sure if this is any kind of a clue, but I'm almost sure I only get the error 12 when I have, at some point in the game, gone into stylist or CAS. I use both depending on what all I want to do. I was wracking my brain to think if I managed a good save after going into CAS over the last few weeks and I think so,but don't know for 100%. The thing here is that I don't get this error in any of my newer games so it may not be something in CAS, but I just don't know. Anyway, some troubleshooting guide would be appreciated if such a thing exists and of course there's my first question to ponder.

On the gym thing, I've had that happen before. One of the goofiest scenarios was years ago where my sim attended a wedding across town earlier in the day and left, then later that night invited a guest over to his home for the evening. He put some music on and asked his guest to dance. The two sims got into a cab, went across town to the wedding chapel where most everyone by then had gone home and the staff mixologist was just leaving as his shift would have been over, and tried to dance on the very nice dance floor there (though the music by the time they got there would have just stopped).

I sent both sims to their respective homes right away before they decided to get married on me or something. But as strange as that was, it made sense that the wedding party scenario was still going on in my sim's "mind" so the game had just selected the wrong music source to dance to, even though they had quite a distance to travel to get to it. So I guess the question is, had either of these sims or if not them had active play and the game camera been on gym lot recently before this happened? Were the gym music speakers really on the lot of the gym or were they off of it, on what we call the World Lot (sounds like not the case if there is a designated aerobics area). What I have yet to see is sims directed to dance but traveling to a foreign world to do so, maybe that will be next.

I think your world needs a MasterController Reset.

Igazor, I did the MC reset today. Things are okay. I was able to save the game twice today, (every 30 min) but I am having odd things happening.
First, my sim's progress panel got frozen on one sim regardless of whom I had selected over on the portrait panel. I even tried switching homes and actives and it never went away. But I was able to select sims and make them do things, just not see what was going on with them as far as mood, etc.
Also, I was having a female sim flirt with another sim, he was a homeless vagrant and it was showing me that their relationship is "daughter-in-law" which is funny since she's a YA who's unmarried and unattached and he was a sim with no relatives in town (I checked) and yet he is showing as her love interest in her relationship panel. (this was before the freeze-up of that part) And if that wasn't enough weirdness, (this is all the same game btw)
I suddenly had sims coming over to the active sims home to visit and most of them just helped themselves to the house with no ability to ask them in or greet them. They got visited by 3 sims in just a sim-hour, thankfully all family and relatives, but still...generally they ask to be let in or my actives have to greet them first regardless.

As for the random, running off to dance somewhere else. As far as I know they weren't doing anything like that. Both just got off work and met up at the arcade. Neither work at the gym and the gym wasn't in view either. Last time it happened they were at home and I wanted them to dance in their foyer, so they took off to dance at the local watering hole. That was too funny.
hen a very similar occurrence at the arcade AGAIN today, but this time grandpa wanted to autonomously boogie oogie oogie with his grandson and they took off for the gym to dance together! LMAO IDK what the deal is, but it seems Sunset Valley is full of gremlins!