Conflict Learndash Certificates and WP External Links

Additional technical info:

WP url:  
WP version:  6.0.1
PHP version:  7.4.30
Active Plugins:
 - Astra Pro, version: 3.9.1
 - BetterDocs, version: 2.1.5
 - Broken Link Checker, version: 1.11.18
 - Customizer Search, version: 1.1.6
 - Easy Dash for LearnDash, version: 2.1.0
 - GTM4WP, version: 1.16.1
 - Ivory Search, version: 5.4.8
 - LearnDash HUB, version: 1.0.0
 - LearnDash LMS, version: 4.3.0.2
 - LearnDash LMS - Achievements, version: 1.1.1
 - LearnDash LMS - Certificate Builder, version: 1.0.3
 - LearnDash LMS - Notifications, version: 1.5.3
 - LearnDash LMS - ProPanel, version: 2.1.4.1
 - LearnDash LMS - Zapier Integration, version: 2.3.0
 - miniOrange SSO using SAML 2.0, version: 4.9.27
 - My Private Site, version: 3.0.11
 - Redirection, version: 5.3.2
 - Spectra, version: 2.0.7
 - Ultimate Dashboard, version: 3.7.1.4
 - User Role Editor, version: 4.63
 - WISDM Reports for LearnDash FREE, version: 1.2.0
 - Wordfence Security, version: 7.6.0
 - WP External Links, version: 2.55
 - WP Fastest Cache, version: 1.0.4
 - WP Migrate Lite, version: 2.3.3
 - Zapier for WordPress, version: 1.0.4

WPEL Settings:
array(
'wpel-external-link-settings' => array (
  'apply_settings' => '1',
  'target' => '_blank',
  'target_overwrite' => '1',
  'rel_follow' => 'nofollow',
  'rel_follow_overwrite' => '',
  'rel_noopener' => '',
  'rel_noreferrer' => '',
  'rel_external' => '',
  'rel_sponsored' => '',
  'rel_ugc' => '',
  'title' => '{title}',
  'class' => '',
  'icon_type' => '',
  'icon_image' => '1',
  'icon_dashicon' => 'dashicons-menu',
  'icon_fontawesome' => 'fa-address-book',
  'icon_position' => 'right',
  'no_icon_for_img' => '1',
),
'wpel-internal-link-settings' => array (
  'apply_settings' => '',
  'target' => '',
  'target_overwrite' => '',
  'rel_follow' => '',
  'rel_follow_overwrite' => '',
  'rel_noopener' => '',
  'rel_noreferrer' => '',
  'title' => '{title}',
  'class' => '',
  'icon_type' => '',
  'icon_image' => '1',
  'icon_dashicon' => 'dashicons-menu',
  'icon_fontawesome' => 'fa-address-book',
  'icon_position' => 'right',
  'no_icon_for_img' => '1',
),
'wpel-exceptions-settings' => array (
  'apply_all' => '1',
  'apply_post_content' => '1',
  'apply_comments' => '1',
  'apply_widgets' => '1',
  'skip_post_ids' => '',
  'ignore_classes' => '',
  'subdomains_as_internal_links' => '',
  'include_urls' => '',
  'exclude_urls' => '/certificates/sjabloon-certificaat-module/
',
  'excludes_as_internal_links' => '1',
  'ignore_script_tags' => '1',
  'ignore_mailto_links' => '1',
),
'wpel-exit-confirmation-settings' => array (
  'exit_preview' => '',
  'background' => '#FFFFFF',
  'title' => 'You are leaving our website',
  'title_color' => '#FFF',
  'title_background' => '#999',
  'title_size' => '18',
  'text' => 'This link leads outside our website and we are not responsible for its content. If you still want to visit the link, click here:',
  'text_color' => '#444',
  'text_size' => '14',
  'popup_width' => '400',
  'popup_height' => '200',
  'overlay' => '1',
  'overlay_color' => '#000',
  'button_text' => 'Stay on the site',
  'button_size' => '14',
  'button_color' => '#FFF',
  'button_background' => '#1e73be',
),
);

Please note the site is not public