Hosting has 3 tables (InnoDB) with links. Each has its own primary key. When adding a constraint, I chose ON DELETE CASCADE, ON UPDATE CASCADE everywhere. Everything works fine, but the connections are not displayed in the designer and this window (screen) appears. You cannot even move tables.
Moreover, the Delete Link window is superimposed on Create a link.
Version of phpMyAdmin: 4.4.15.10
And in the same way on LAN with the latest version of phpMyAdmin. What could be the problem? 