Wysiwyg editor issue when displaying in XWiki modal popup

I am working on an application that need to show forms in popups.
But there is a problem when trying to initialize wysiwyg fields.
After the content of the Modal popup is loaded successfully I excute the code bellow to intialize Wysiwyg fields

require(['jquery'],function($){
    //Initialize textarea fields Wysiwyg
    Wysiwyg.onModuleLoad(function() {
    $("textarea").each(function(){
        var wysiwygConfig = {hookId:$(this).attr("id")};
        new WysiwygEditor(wysiwygConfig); 
     });
   });
});

It is working the first time when the modal popup is loaded, but if I close the popup and try to open it again the wysiwyg fields are not initialized.
I only have simple textareas.

Note that I do not have any special js error.

I think that the wysiwig editors initialized the first time sould be released.
I try to do this but the issue persists.