I created a sim, but as soon as I go to a lot to play they aren't playable. They will show up (whether there's two characters or just one), but you can't play as them. It is as if they were a npc in the game.I have tried making new worlds with the character just for him to not show up as playable as well.
I am not using mods, and only have the packs, Vampire Pack, Bust the Dust (which still isn't working), and Seasons (which works just fine).