Load more and custom Query

Hi,

I got a custom form to filter items and construct a custom query.
I use the $_POST data to setup my custom query and filter by meta_value.

It works well on the first 12 results, but after your plugin load 12 more items, it looks like my custom meta_query args are not applied anymore.

Does your plugin use only the main query or I can use custom queries if I got the good selectors ?
Is there any issue because I use POST data and you use AJAX to load more ?

Thank you for your help.

Anthony