Hello,

after changing to 4.2.0 beta the following code works no longer. The first tab is shown correctly - the second one is empty instead of all required code is loaded. There are no errors in the chrome console shown.

With 4.1.1 everything is working correctly.

PHP Code:
Ext.Loader.setPath('Ext.ux''system/extjs/examples/ux/'); 

Ext.require([ 'Ext.ux.RowExpander' ]); 

Ext.define('AM.view.system.info' ,{ 
    
extend'Ext.panel.Panel'
    
alias 'widget.system_info'
    
iconCls 'settings'
    
title 'Systeminformation'
    
closabletrue
      
tools:[{ 
            
type:'help'
            
qtip'Hilfe anzeigen'
            
handler: function(eventtoolElpanel){ id 1hilfe_aufruf(id); 
            } 
    }], 
    
initComponent: function() { 
            
        
this.items =  [ 
            { 
                
xtype'tabpanel'
                
activeTab0
                  
items: [ 
                    { 
                         
title'Allgemein'
                           
items: [ 
                                { 
                                     
xtype'system_details'
                                     
nameColumnWidth 170
                                     
iconCls ''
                                     
title '' 
                                

                        ] 
                       }, 
                       { 
                        
title'Update History'
                        
items: [ 
                                { 
                                
xtype'gridpanel'
                                
store'nav.system_update'
                                
columns: [ 
                                             {
text'Build kalkTOOL'flex1dataIndex'prg_version'summaryType'count'
                                             
summaryRenderer: function(value){ 
                                                      return ((
value === || value 1) ? '' value ' Patches' '1 Patch'); 
                                              } 
                                              }, 
                                           {
text'Kategorie'dataIndex'prg_kategorie'}, 
                                           {
text'Datum'dataIndex'prg_time_real'rendererExt.util.Format.dateRenderer('d.m.Y H:i')}, 
                                           {
xtype:'actioncolumn'width20
                                                
items: [{ 
                                                     
icon'system/icons/page_white_acrobat.png'
                                                     
handler: function(gridrowIndexcolIndex) { 
                                                             
this.fireEvent('show_pdf'thisgridrowIndexcolIndex); 
                                                     } 
                                                }] 
                                            } 
                                ], 
                                
viewConfig: {     
                                    
stripeRowstrue
                                    
loadingText'Daten werden geladen...' 
                                
}, 
                                
features: [{ftype:'groupingsummary',  
                                            
groupHeaderTpl'{name}'
                                            
startCollapsedtrue
                                            
enableGroupingMenufalse 
                                
}], 
                                
plugins: [{ 
                                            
ptype'rowexpander'
                                            
rowBodyTpl : [ 
                                            
'<p><b>Informationen zum Patch:<br><br></b> {prg_text}</p>' 
                                            

                                }] 
                        } 
                        ] 
                       } 
            ] 
            } 
        ]; 
         
      
this.callParent(arguments); 
    } 
}); 
Any tip is useful!

Thanks in advance!

Michi