link to issue created at madsjulia -- Mads.levenberg_marquardt not finding optimum, even for Rosenbrock, could it be that different settings are needed?

Hi. I opened an issue at madsjulia but not sure if I should mention it here, too. Not sure whether I am misinterpreting how to use Mads.levenberg_marquardt or whether it is a problem. Many thanks for any advice someone is willing to provide, in whichever is the right venue.