Solved
Cannot Load back into Vacation Resort
Everything was working perfectly fine until I put the family into a vacation. Took them to a shop on one of the vacation lots so travelled by taxi there. On trying to return them back to the resort v...
This sounds a lot like this bug. it has a workaround to get your sims back for now but it does mean vacations might be risky to play with atm.
https://forums.ea.com/discussions/the-sims-2-en/sims-2-legacy---vacation-bug/11855112
