Never got the promt/task for homer/comic book guy and chief wiggum

The task is them eating at the Krusty Burger, so try to place that in storage. Then force exit out of the game and return. If that doesn't work, try the buildings associated with those characters (Android's Dungeon and the police station - can't store the Simpson house, so just those two).

Also note, the three have to get checkups after they eat, so there is one more step in between.

Good luck.