I can confirm this problem.
When you edit an article or dovabya new article that is not specified categories receive this error:
Fatal error: Call to a member function reorder() on a non-object in C:\xampp\htdocs\migjoom25\administrator\components\com_content\models\article.php on line 508
No matter which editor to use.
I just tested it again and could find no errors (Joomla 2.5.11 JS 2.6.4)
You find the output of the plugin here in the activity stream.
I don't know where the errors come from on your site
Maybe there is a conflict with another plugin?
Bitte Fragen immer ins Forum posten, damit andere auch was von haben
If installed on joomla 2.5.8 with JomSocial 2.6.2 and JCE Editor, this plugin is installed as a plug-type content and application JomSocial. It will generate an error saving items. If you create a new article and you press the button to save (or save and close) the browser (any) generates blank page. You have to go back. The article is saved to the same, but the plugin is poorly designed.