I migrated to 4.1.0 beta 1 and there is an interesting error. My app has some windows. Most windows have a
tree panel to the left, tab panel to the right.
After opening and closing tabs, at some point, closing a tab results in a error. The tab closed disappears and a "hole" is created. Instead of the other tabs moving to the left to fill in the "hole", an exception is thrown instead. After that the ui is messed up.
Closing any other tab results in the same thing until at one point all the tabs just disappear. Resize the browser window and the maximized window will not even response.
If you close the window and open that window or any other window, what you see is not a window. Just some rect with the windows background. However, there is no title bar and non of the components are shown.
The only is to reload the page.
This is the 3rd time I see this error. Sorry I do not have snap shots.
Below is the error from firebug. Hope it helps
regards.Code:Uncaught Error: NOT_FOUND_ERR: DOM Exception 8 Ext.define.moveItem0.5:1 Ext.define.renderItems0.5:1 Ext.define.renderChildren0.5:1 Ext.define.invalidate0.5:1 Ext.define.invalidate0.5:1 Ext.define.invalidate0.5:1 Ext.define.invalidate0.5:1 Ext.define.flushInvalidates0.5:1 Ext.define.run0.5:1 Ext.define.statics.flushLayouts0.5:1 Ext.define.statics.updateLayout0.5:1 Ext.define.updateLayout0.5:1 Ext.define.doLayout0.5:1 Ext.define.remove0.5:1 Ext.define.closeTab0.5:1 Ext.define.onCloseClick0.5:1 Ext.define.onClick0.5:1 (anonymous function) c