EA never fails to find new failures

I had characters go missing once when I was rearranging monorail tracks in water. EA was no help. First I had to figure out who all went missing by checking the town census. Then I stored each of their buildings and when I returned it, the characters returned. If some of the Simpsons are missing, you can't store the Simpsons house, so good luck with EA. :/
I had around 20-25 missing...what a panic.
@ZennGlenn EA should be able to reset your town prior to this happening. You will lose any progress though.