Accordions: Open with url parameters from nested accordion?

I have created some nested accordions and now I want to refer from one inner nested content to another inner nested content.
I have already tried your suggestions to use url parameters like:
https://my-website/page/accordions/?active_index=10457|1
but it will not work. The accordions remain unactivated or collapsed. Nothing is opened or activated.

Furthermore I also found, that even your own example/demo doesn’t work!
When I open the page:
https://pickplugins.com/demo/accordions/accordions/open-via-url-parameter/?active_index=83|1
this page will be displayed with all accordions collapsed and nothing active or open.

Can you please give some advise what to do?