Is this happening on Time Park? I've had problems with enemy characters getting stuck around the teleporters in Time Park. If there's more than one, then they won't have indicators showing where they are. If there's only 1 left (which is usually the case), a marker will show where it is. They are usually in the "Hub" room which connects to all of the themed zones (the 1 with a concession stand in the middle and 4 teleporters). The character is usually in one of the corners of the room nearest to the teleporter. It seems like their pathfinding sometimes bugs out and they don't understand how to use the teleporters, so they get "as close as they can" to the garden which is the corner of the "Hub" room closest to the garden.
