2) In case it is a compatibility problem, please deactivate all other plugins, and switch to WordPress default theme 2021, deactivate all custom PHP/JS code snippets, and test again
4) If the problem still persists, please provide a copy of your website, you can put the package files in your own google drive disk, share the link only, also point out the problem page URL and view URL, I need to test and debug it in my localhost, thanks https://toolset.com/faq/provide-supporters-copy-site/