Menu only showing 2 levels. Activello Theme

Howdy,

I created a menu that has 3 levels. Top level and 2 sub levels. However, only the top level and the first set of sub menu items show up.

I found the following code in one of the PHP files that has the depth hard coded to 2.

function activello_header_menu() {
  // display the WordPress Custom Menu if available
  wp_nav_menu(array(
    'menu'              => 'primary',
    'theme_location'    => 'primary',
    'depth'             => 8,
    'container'         => 'div',
    'container_class'   => 'collapse navbar-collapse navbar-ex1-collapse',
    'menu_class'        => 'nav navbar-nav',
    'fallback_cb'       => 'wp_bootstrap_navwalker::fallback',
    'walker'            => new wp_bootstrap_navwalker()
  ));
} /* end header menu */

I changed the depth to a higher value and now the sub menu items show up but they are directly below the 2nd level item and when I move my mouse to them they disappear.

Anyone have any idea what else I can look for to make this work the “normal” way?

Thanks!