I updated Joomla to version 3.6.4.
Now, in the admin, when I open a module to edit it, it shows the "normal" admin page of the module but only during less than half a second then the page goes fully white, there's just a dropdown menu at the upper left corner (the dropdown menu that usually indicates the order of the modules in the chosen position).
I don't use any text editor.
So... I really don't know what to do !
Please, someone help me !
Thanks !
