Slides Disappear After Saving

If a big carousel loses slides every time you save, your server is silently dropping part of the form data. The culprit is a PHPPHPThe server-side programming language WordPress is written in. limit.

The cause: Max Input Vars

PHP’s max_input_vars caps how many fields a single form can submit (the default is 1000). A carousel with many slides – each with several fields – can exceed that, so PHP truncates the data and slides go missing.

Check your limit

Open NEO Bootstrap Carousel > System Status. The Max Input Vars row flags the value; the pluginPluginA package of code that adds features to a WordPress site without altering core files. recommends at least 1000, and higher for large sliders.

How to raise it

• Ask your host to raise max_input_vars (for example to 3000).
• Or add php_value max_input_vars 3000 to .htaccess, or set it in php.ini / a custom .user.ini.
• As a workaround, split a very large slider into two smaller carousels.