couldn't add more than 3 layers

[wondie]

I tried to add more layers using the plugin as a group but I can only add 3 layers. The rest are not even added in html. I am using bootleaf template using bootstrap, jquery core, and jquery ui with leaflet 0.7.3. My code is the following.

var baseLayers = [
    {
        name: "Mapbox Street",
        layer: streets,
        "active": true
    },
    {
        name: "Esri Satellite",
        layer: satellite
    },
    {
        name: "Mapbox Grayscale",
        layer: grayscale
    }
];
var overLayers = [
    {
        group: "Lake Victoria Basin Land Cover",
        layers: [
            {
                name: "Land Cover - 2014",
                icon: iconByName('landcover'),
                layer: landcover2014
            },
            {
                name: "Land Cover - 2014",
                icon: iconByName('landcover'),
                layer: landcover2014
            },
            {
                name: "Land Cover - 2014",
                icon: iconByName('landcover'),
                layer: landcover2014
            }
        ]
    },
    {
        group: "National Boundaries",
        layers: [
            {
                name: "National Boundaries",
                icon: iconByName('boundaries'),
                layer: boundaries
            }
        ]
    }
];

panelLayers = new L.Control.PanelLayers(baseLayers, overLayers, {collapsed: false});

map.addControl(panelLayers);

I have used jquery to hide layer labels on collapse as they are shown on collapse too.

 $(".leaflet-panel-layers-overlays span").css("display", 'none');
$( ".leaflet-panel-layers" ).mouseover(function() {
    $(".leaflet-panel-layers-overlays span").css("display", 'inline');
    $(".leaflet-panel-layers-overlays input").css("display", 'inline');
});
$( ".leaflet-panel-layers" ).mouseout(function() {
    $('.leaflet-panel-layers-overlays span').hide();
    $(".leaflet-panel-layers-overlays input").css("display", 'none');
});

[stefanocudini]

For hidding elements the best way is CSS.

Which way you use to add nerw layers?