Warning: Attempt to read property "name" on string

Hi!

I happened to see the following php warning at the top in the Bricks Builder editor (for a template) - it wasn't there earlier:

Warning: Attempt to read property "name" on string in /home/xxx/wp-content/plugins/wpcodebox/src/Runner/PhpSnippetRunner.php(17) : eval()'d code on line 142

Line 142 refers to the following code snippet:

function nod_get_term_name_single( $field_id ) {
	return rwmb_meta( $field_id )->name;
}

And the function is referred to in a Bricks template Basic text element ("magazine_no" is the field id/slug):

{echo:nod_get_term_name_single(magazine_no)}

But the code snippet still gives the expected term name (in this case "2023:1") both in the Bricks Builder and in the frontend.

Why do you think this happens? Bug in Bricks Builder or Meta Box or somewhere else?

I use Bricks Builder 1.9.2; Meta Box 5.8.2, and Meta Box AIO 1.23.1; WP 6.3.2