Increase Post Meta Limit

meta_limit.php

<?php
add_filter( 'gppa_object_type_col_rows_query', function( $sql, $col, $table, $gppa_obj ) {
	// Change this to the maximum number of POST meta results
	$meta_limit = 1500;

	global $wpdb;
	if ( $wpdb->postmeta === $table ) {
		$sql = str_replace( '1000', $meta_limit, $sql );
	}
	return $sql;
}, 10, 4 );

👉 This Gist has been migrated to the Gravity Wiz Snippet Library:

https://github.com/gravitywiz/snippet-library/blob/master/gp-populate-anything/gppa-postmeta-property-value-limit.php