The `window.addMessage` is removed since Wagtail 5.0 which causes JS errors when changing the order of items. See https://docs.wagtail.org/en/latest/releases/5.0.html#javascript-window-addmessages-replaced-with-event-dispatching for more details. <img width="594" alt="image" src="https://github.com/elton2048/wagtail-orderable/assets/1012919/3f86de22-f10e-45fb-b2f2-a8fda6e41606">
The
window.addMessageis removed since Wagtail 5.0 which causes JS errors when changing the order of items.See https://docs.wagtail.org/en/latest/releases/5.0.html#javascript-window-addmessages-replaced-with-event-dispatching for more details.