If anyone want to skip the cache thing you can do like me.
In the plugin folder on line 52 in the file includes/widget-recent-posts-extended.php
replace this
if ( false === ( $rpwewidget = get_transient( 'rpwewidget_' . $widget_id ) ) ) {
$args = array(
'numberposts' => $limit,
'cat' => $cat,
'post_type' => $post_type
);
$rpwewidget = get_posts( $args );
set_transient( 'rpwewidget_' . $widget_id, $rpwewidget, 60*60*12 );
} ?>
with this
/*
if ( false === ( $rpwewidget = get_transient( 'rpwewidget_' . $widget_id ) ) ) {
*/
$args = array(
'numberposts' => $limit,
'cat' => $cat,
'post_type' => $post_type
);
$rpwewidget = get_posts( $args );
/*
set_transient( 'rpwewidget_' . $widget_id, $rpwewidget, 60*60*12 );
}
*/
?>