Open CKFinder from CKEditor shows only Basket folder

Hello,

I have a a couple of folders defined in config.php in CKFinder

$config['ResourceType'][] = Array(
		'name' => 'backgrounds',
		'url' => $baseUrl . 'backgrounds',
		'directory' => $baseDir . 'backgrounds',
		'maxSize' => 0,
		'allowedExtensions' => 'jpeg,jpg,png',
		'deniedExtensions' => '');
		
$config['ResourceType'][] = Array(
		'name' => 'photoalbums',
		'url' => $baseUrl . 'photoalbums',
		'directory' => $baseDir . 'photoalbums',
		'maxSize' => 0,
		'allowedExtensions' => 'jpeg,jpg,png',
		'deniedExtensions' => '');

//......................................... and more

when I launch CKfinder from Javascript

function openCKfinder(folder) {
		// You can use the "CKFinder" class to render CKFinder in a page:
		var finder = new CKFinder();

		// The path for the installation of CKFinder (default = "/ckfinder/").
		finder.basePath = '/ckfinder/';

		//Startup path in a form: "Type:/path/to/directory/"
		var startupPath = 'photoalbums:/' + folder + '/';
		finder.startupPath = startupPath;

		// Launch CKFinder
		finder.popup();
	}

opens CKFinder in the correct folder (eg photoalbums/SUBFOLDER)

Now when I click on the image button in CKEditor and choose Browse Server then CKfinder opens but only with a folder called basket (mandje in Dutch). Other folders are not shown.

Any idea's why ?