Can't 'add existing module' to another page


When composing an accordion on a page, the module will not replicate onto another page using the 'add existing module' from the admin menu. It just inserts a new blank module and so I have to re-create the accordion contents from scratch which is very tedious when it has alot of items (even worse when I have to edit any of them!).
Is this something it can't do, or have I missed something in the setup or is there something incompatible with my dnn version. Any advice or help would be appreciated. Thanks
(DNN version 7.2.2 / AccordionTabs version 1.1.0)