If we leave the 'Max Posts' empty it will only show 100 posts. We have to set it to a number greater than 100 to show all post.

The documentation says: Max Posts - Determines the maximum number of posts shown in the list. If left empty will show all posts.

However, in provider_params_processor.class.php on in line 451:

$limit = UniteFunctionsUC::getVal($value, "{$name}_maxitems"); 

$limit = (int)$limit; 

if($limit <= 0) 

    $limit = 100;

This seems to set the default to 100 and not all posts.