Instance Ready not firing everytime

I am using below code to change editor config, but sometime instance ready code never fires. Please let me know if I am missing anything.

function attacheCKEditorInstanceReadyEvents(){
    console.log('-->Inside attacheCKEditorInstanceReadyEvents');

    if(CKEDITOR != undefined ){    
        console.log('instanceReady');
        CKEDITOR.on('instanceReady', function(e) {                  
                  transformEditor(e);
        });
        }
        else{
            console.log('failed for one time').
            setTimeOut('attacheCKEditorInstanceReadyEvents();',1000);
        }
    }
    function transformEditor(e){
            console.log('-->e.editor.name'+e.editor.name);
            if (e.editor.config.magic) return;
            console.log('-->2');
        
            var target = e.editor.config.bodyId;
            var name = e.editor.name;
            e.editor.destroy();
        
            CKEDITOR.editorConfig = function( config ) {
                        config.magic = true;
                        config.removePlugins = 'SpellChecker';
                        config.toolbar =
                            [
                                { name: 'document',     items : [ 'Source','-','Save','NewPage','DocProps','Preview','Print','-','Templates' ] },
                                { name: 'clipboard',    items : [ 'Cut','Copy','Paste','PasteText','PasteFromWord','-','Undo','Redo' ] },
                                { name: 'editing',      items : [ 'Find','Replace','-','SelectAll','-', 'Scayt' ] },
                                '/',
                                { name: 'basicstyles',  items : [ 'Bold','Italic','Underline','Strike','Subscript','Superscript','-','RemoveFormat' ] },
                                { name: 'paragraph',    items : [ 'NumberedList','BulletedList','-','Outdent','Indent','-','Blockquote','CreateDiv','-','JustifyLeft','JustifyCenter','JustifyRight','JustifyBlock','-','BidiLtr','BidiRtl' ] },
                                { name: 'links',        items : [ 'Link','Unlink','Anchor' ] },
                                { name: 'insert',       items : [ 'Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak','Iframe' ] },
                                '/',
                                { name: 'styles',       items : [ 'Styles','Format','Font','FontSize' ] },
                                { name: 'colors',       items : [ 'TextColor','BGColor' ] },
                                { name: 'tools',        items : [ 'Maximize', 'ShowBlocks','-','About' ] }
                             ];
        
            }
            CKEDITOR.replace(name, {
                        height : 275,
                        bodyId : target
            });
        
 
    }