Index: /CKEditor/trunk/_source/plugins/editingblock/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/editingblock/plugin.js	(revision 3676)
+++ /CKEditor/trunk/_source/plugins/editingblock/plugin.js	(revision 3677)
@@ -118,7 +118,11 @@
 						editor.focus();
 
-					// Fire instanceReady for both the editor and CKEDITOR.
-					editor.fireOnce( 'instanceReady' );
-					CKEDITOR.fire( 'instanceReady', null, editor );
+					// Fire instanceReady for both the editor and CKEDITOR, but
+					// defer this until the whole execution has completed
+					// to guarantee the editor is fully responsible.
+					setTimeout( function(){
+						editor.fireOnce( 'instanceReady' );
+						CKEDITOR.fire( 'instanceReady', null, editor );
+					} );
 				});
 		}