yoast-acf-analysis Yoast SEO no longer performing word count. No SEO or Readability analysis

[ x] I've read and understood the contribution guidelines.
[ x] I've searched for any related issues and avoided creating a duplicate issue.

Please give us a description of what happened.

After upgrading to Yoast SEO 14.8 & WordPress 5.5, Yoast SEO no longer sees the post content, saying on both SEO & readability analysis that the word content is zero. Even going back to posts that Yoast SEO marked as good (green), when I go into edit mode, it no longer see any words. Consequently no analysis take place on the posts.

Please describe what you expected to happen and why.

How can we reproduce this behavior?

Technical info

WordPress version: 5.5
ACF Content Analysis for Yoast SEO version: 2.6
Yoast SEO version: 14.8.1
ACF type:Pro
ACF version: 5.9
Relevant plugins in case of a bug: Classic editor 1.6?

Aug 25 '20 20:08 Shaner18

I am getting the same issue when using Classic Editor 1.6. It looks like Yoast SEO is enqueuing a different script for the classic editor. The script name is "edit-post-classic".

I added the following to my functions.php as a workaround for the time being whilst using version 2.7.

add_filter('admin_enqueue_scripts', function() {
    $yoast_acf_analysis_plugin_data = get_plugin_data( AC_SEO_ACF_ANALYSIS_PLUGIN_FILE );
    $config = Yoast_ACF_Analysis_Facade::get_registry()->get( 'config' );

    // Post page enqueue.
    if ( wp_script_is( WPSEO_Admin_Asset_Manager::PREFIX . 'post-edit-classic' ) ) {
        wp_enqueue_script(
            'yoast-acf-analysis-post',
            plugins_url( '/js/yoast-acf-analysis.js', AC_SEO_ACF_ANALYSIS_PLUGIN_FILE ),
            [ 'jquery', WPSEO_Admin_Asset_Manager::PREFIX . 'post-edit-classic', 'underscore' ],
            $yoast_acf_analysis_plugin_data['Version'],
            true
        );

        wp_localize_script( 'yoast-acf-analysis-post', 'YoastACFAnalysisConfig', $config->to_array() );
    }
}, 20, 0);

Sep 01 '20 12:09 ghindle

I deactivated the Classic Editor plugin, but for me the same problem persists!

Sep 22 '20 16:09 DanaIliescu

I can confirm this is still an issue - we are using WP5.5.1, Plugin Version 2.7 - ACF Pro 5.9.1, Yoast 14.9... Yoast can assess everything OK such as titles / meta etc - but cannot assess anything inside the ACF fields... So word count, internal and external link, key phrase in intro, never change from red...