- Plesk for Linux
- Specific PHP version is disabled in Tools & Settings > PHP Settings;
- The domain with the same PHP version automatically filled with first available PHP version after switch the SSL certificate under Plesk > Domains > Hosting settings.
This is a Plesk bug PPPM-9773 that will be fixed in future product updates.
At the moment, there is no workaround available.
Consider following the article to be notified when the bug is fixed - the article will be updated.