same taxonomy Taxonomy Advanced fields not saving data

Dear Giang,

I found a problem.
Use function rwmb_meta with taxonomy_advanced field and it's return value is all terms!

Use function get_post_meta works fine it's return value string array.

get_post_meta return array(1) { [0]=> string(7) "332,333" }
rwmb_meta return WP_term object of all terms in taxonomy_advanced selected taxonomy.

Best regards.