I am having the same problem. I have tired everything under the sun to resolve this but nothing seems to work. I have increased the PHP variables to a fairly high limit.
php_value max_input_vars 6000
php_value suhosin.post.max_vars 6000
php_value suhosin.request.max_vars 6000
php_value max_execution_time 600
But this does not seem to resolve the issue. Elementor widget panel still loads infinitely.
When I deactivate the Futurio Pro plugin everything works fine.
I am using the latest version of Everything.
What could be the problem?