Cople

@ftpwp Tks for feedback, new version is published.

Tested with WP 4.9.8, works fine.

Have you installed any editor plugins?

tinymce-smiley-button.php:
add add_action('wp_enqueue_scripts', 'mce_smiley_css'); around add_action('admin_enqueue_scripts', 'mce_smiley_css');

tinymce-visual-editor-comment/function.php:
set teeny to false ( why )

it should work ??

you can modify it in your tinymce-smiley-button.php:

array_multisort($keys, SORT_ASC, $wpsmiliestrans);

I think smileys may have been disabled somehow.