Hi,
for this problem, it would be much more easier, if I could make a Video to describe the problem. I also would give you Admin Access to the Page, so you could take a look. I would share the video in the private message via a WeTransfer Download Link, if this would be ok for you?
Thanks
Thorsten
Based on the information that you've shared, it seems that the issue here is that you're using the incognito/private window for this testing.
In incognito mode, browsers don't save your browsing history, cookies or information entered in forms. As a result, membership sites that rely on user's cookies to distinguish between guests and logged-in users, can perform unexpectedly in that mode.
Can you please repeat the same test but without using the incognito/private window? Most likely, you won't have to refresh the page, to update your logged-in user status and view the complete article.
this issue also occurs if you don't use the incognito mode. Before I showed you the issue in the incognito mode, I had this issue on my iPad (Chrome and Safari browser). Some clients of my client also have this issue and they also didn't use the incognito mode. They bought a membership at my client's shop, then received the login credentials, logged in, and couldn't see the full articles.
So this problem exists even without the incognito mode.
Thank you for waiting, while I performed some investigation on your website's clone.
I used two different migration plugins (Duplicator and Cloudways Migration) to clone your website on my test server, but as the content is added using the Oxygen builder, the content is not carried over properly on the cloned websites, which affects the troubleshooting.
The Oxygen builder officially recommends the "All-in-One WP Migration" plugin ( ref: hidden link ), but on your website, the export of the backup never completes.
The possible cause can be the low "Upload max filesize" and "PHP post max size" value on the server (which is currently set to 128M) and/or the security plugin.
I'll recommend getting in touch with the server's support team to temporarily increase these two values to about 1024M. After that, you can temporarily deactivate the "All In One WP Security" plugin and then try to export the backup through it.
Please let me know how it goes and once I'll have a properly working clone/backup of the website, I'll be able to continue the investigation.