Sims teleporting around, game not saving

@macarotherTo begin with repair your game/clean install. Then start fixing your mods. Here's a list of problems that I had to fix with my game when this was happening to me.

The biggest thing is that your XML injector is broken if you haven't updated it (and assuming you have one). This is the mod that makes the vast majority of script mods work correctly, like careers and certain traits (Besides, basically all trait mods have to be updated but that wouldn't cause your problem).

Make sure that MCCC and UI cheats are updated.

Also if you have any cc beds make sure to install the batch fix for them,

as well as the batch fix for all CC clothing marked as trendy (which is any cc created/installed after the update) it keeps the game from saving and causes a whole host of problems.

Other common problems are any animation mod that interacts with the bed, like the cuddle mod, and other such mods that start with "w." If you don't know what I'm talking about, don't worry about it.

Also, any mods that alter lifespan, phones, the CC wrench icons, traits in the reward menu, and event mods, will all cause you problems and should be fixed/deleted/updated. (Though I doubt they are making your sims teleport)

Once done, repair the game, and delete the localthumbcache, then create a new save. If this works, check old saves. If they aren't fixed I've had limited success with dragging them out, launching, then putting them back. If none of this works, I have no idea and would probably need a mod list.