I am seeing this as well.
Hey, I came across the same issue when using ACF and taxonomies.
If you’re still looking to have the taxonomy meta box removed take a look at the remove_meta_box function.
function remove_team_member_meta() {
remove_meta_box( 'rolediv', 'team-member', 'side' );
}
add_action( 'admin_menu' , 'remove_team_member_meta' );
‘rolediv’ would be the id of the wrapper for the meta box you’d like to remove.