The file to check/edit to fix or test is modules/cron/code/controller.ext.php line: 149.
That is the the path it adds to the database.
According to that, you should not enter the starting / and I do not see how it could add a second / unless the user enters it into the form.
That is the the path it adds to the database.
PHP Code:
$full_path = ctrl_options::GetSystemOption('hosted_dir') . $currentuser['username'] . "/public_html/" . $controller->GetControllerRequest('FORM', 'inSc
ript');