genetic algorithm doesn't stop when it should

Hi,

I'm using the genetic algorithm (ga function), and set FitnessLimit in gaoptimset, but the algorithm doesn't stop when the fitness function reaches FitnessLimit. I know that because I monitor the fitness value with @gaplotbestf. For instance, FitnessLimit = 0.004. I run the algorithm and see that eventually @gaplotbestf shows that the fitness value is <0.004. The algorithm should stop but it doesn't. Am I missing something? Is there something else that would prevent the algorithm from stopping? Like TolFun value not reached? Thanks

Tony