Text Area Link Button Missing

Yes, that’s it.

I’ve disabled all plugins, that hasn’t seemed to bring the link / hyperlink button back in the Text Area element.

I found my issue. While all of the regular plugins were turned off there was a must use plugin that was interfering with it. Sorry about wasting your time but appreciate the prompt replies! You guys are awesome!

It was a custom file of various code. The piece that caused the problem was this filter tiny_mce_plugins missing its function which I included.

add_filter( 'tiny_mce_plugins', 'disable_emojicons_tinymce' );
function disable_emojicons_tinymce( $plugins ) {
  if ( is_array( $plugins ) ) {
    return array_diff( $plugins, array( 'wpemoji' ) );
  } else {
    return array();
  }
}