Mobile Search Feature

Dear, I check your site i see that problem because you custom search field select, to fix your problem please:
1. Remove value none (change to empty) in file 'layouts/noo-property-search-style-2.php' (see attachment)

2. Add custom code in file functions.php of your theme to change search query work with multi select cities

add_filter('re_property_search_tax_query', function($tax_query, $request){
	$tax_list = array(
		'location' => 'property_location',
		'sub_location' => 'property_sub_location',
		'category' => 'property_category',
		'status' => 'property_status',
	);
	$tax_list = apply_filters( 're_property_query_tax_list', $tax_list );
	if ( !empty( $tax_list ) ) {
		foreach ($tax_list as $tax_key => $term) {
			if( isset( $REQUEST[$tax_key] )  ) {
				$value = $REQUEST[$tax_key];
				$value = is_array($value) ? array_filter($value) : trim($value);
				if(empty($value)){
					continue;
				}
				$tax_query[] = array(
					'taxonomy'     => $term,
					'field'        => 'slug',
					'terms'        => implode(',', (array) $value)
				);
			}
		}
		
	}
	return $tax_query;
},10,2);

Best regards.