question – Querying Posts from ACF Repeater Subfield Choose Worth

I’m making an attempt to question posts based mostly on the worth of a repeater subfield dropdown (choose area) however am having hassle.

Here’s what I’m working with:

<?php
    // Arrange the arguments for the question
    $args = array(
    'meta_query' => array(
      array(
          'key' => 'groups_and_committees_selector_$_committees_groups', // identify of the ACF subfield
          'worth' => 'Board of Administrators', // worth to filter by
          'examine' => '=' // comparability operator
            )
        )
    );
    $user_query = new WP_User_Query($args); // Create the WP_User_Query object
    $customers = $user_query->get_results();// Get the outcomes
    foreach ( $customers as $person ) {  // Loop by way of the customers
       echo 'Consumer Identify: ' . $user->user_firstname . '<br>'; // Show the person's login identify
    }
?>

This isn’t returning any outcomes. If I attempt the above code however use a normal area key of “take a look at” and worth of “true” it returns the 2 customers I setup for that take a look at accurately.

I’m guessing there is a matter with my key or my worth however I can’t determine it out.

What am I doing improper in my code?