Does switching themes to the default Twenty Nineteen or Twenty Twenty resolve the issue?
Yes, previewing the site in Twenty Twenty resolves it.
Unfortunately I think you are going to have to work with the theme developer to get this resolved. I’m not familiar with the Study Circle Pro theme. Hopefully they are able to help you.
I would appreciate any hint that might help. In the example page I have set one accordion block as open and one as closed. Js does not work but the plugin does not recognize it, so one accordion remains closed.
The initial state of the accordions is rendered in HTML, so it doesn’t need the JS to set one accordion as open and another as closed. The JS is only for interaction (opening/closing accordions once set up).
You do have some JS errors in the console I would start by looking into the cause of those.
If switching themes resolves the issue, it is very likely an issue with the theme itself.
Yes, it was a theme’s issue which is now solved after the hint you provided. Thank you.
