April 2014
The closest I found to any solution is here http://answers.ea.com/t5/The-Sims-3/Sims-3-Generations-Free-vacation-glitch/m-p/2427039#M134221
But what I want to know is; Is there anyway to recover the missing sim?
April 2014
just move the family out then move them back in, that is all I got hope it helps
April 2014
see if this can help
http://answers.ea.com/t5/The-Sims-3/My-adult-sim-Dissappears/m-p/2711448#M144331
April 2014
@Fynase And that helps with this bug ? Did you try that yourself ?
Good Luck
Crin
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Important Threads
July 2021
For anyone still experiencing this glitch, here’s how I fixed it:
First you want to go into Edit Town and click on merge household. Then you place a sim from another household into your one and all your Sims will return from the vacation immediately when you click Return to Game. You’ll unfortunately lose everything in the Sim’s inventory, however it’s better than losing the sim outright.
Hope this helped