So I tested a little more. I enabled beta 2 again. The boxes (as we know now) do not appear in the editor. If I change the following in acf.php the boxes magically re-appear.
In the description I changed:
From: Version: 5.8.0-beta2
To: Version: 5.8.0-beta1
In the code
From
var $version = '5.8.0-beta2';
To
var $version = '5.8.0-beta1';
However don’t know why this is happening.
