Hi @arcanepsyche
I think you can fix it by using this code:
add_action('acf/input/admin_head', 'my_acf_move_add_taxonomy_button');
function my_acf_move_add_taxonomy_button() {
?>
<style type="text/css">
.acf-taxonomy-field .acf-icon {
right: 21px;
}
</style>
<?php
}
I hope this helps 🙂