Hello. As we learned from several issiues mentioned here, we are not the only one who has a problem with invisible tables.
1. We updated both plugins and then all tables changed to invisible. Then we restored to the previous version by data restoration on the server.
2. Today we changed one table and published it. The result: invisible too.
We expect to get soon support on this issue. We are working with the CARDINAL theme on PHP 7.4 and the latest WordPress. We want to update as soon as possible to the last release of your plugin, but we have to fix this problem quickly. It cannot be that our customer is making changes in his tables and finally they will disappear. Thanks for quick response. Regards Daniel Hurter