Ok, everything was working fine with my custom search even when I installed my new theme.
But after updating filter controls in Views everything disappeared. Whenever I try to update my filter controls my META HTML shows:
Yes it can. There is a new setting in PHP 5.3 that limits the number of posted variables to 300 by default. There are several variables for each custom field while editing a View so we easily reach the limit with many custom fields. Try raising the limits in .htaccess with:
php_value max_input_vars 3000
If you are also using the Suhosin patch for PHP, you will also need: