Dear Alex,
I have exactly the same problem like fabiovirgi.
I inspected the AJAX requests and got the following: https://picpaste.de/pics/regen-AeHyLqBl.1451664452.jpg
the PHP error_log shows following: [01-Jan-2016 15:38:11 UTC] PHP Notice: Die verwendete Konstruktoren-Methode für WP_Widget ist seit Version 4.3.0 veraltet! Verwende stattdessen
__construct()
. in /home/ursmuehl/public_html/wp-includes/functions.php on line 3619
I increased the PHP memory to 96MB but still get the same error
(function (){if(h){var d=h.length;!function f(b){m.each(b,function(b,c){var d=m.type(c);”function”===d?a.unique&&k.has(c)||h.push(c):c&&c.length&&”string”!==d&&f(c)})}(arguments),b?e=h.length:c&&(g=d,j(c))}return this})
Is there anything else I can try?
Thank you for any help,
Urs