Scandics breaks the plugin.

Hi.

I’m building a custom gallery with this awesome plugin and it works fine except for pulling scandics (??, ??) from my caption field.

You can see the problem here: https://i.imgur.com/Fm5oE.png

Also if I try to include character ?? in the caption field, it clears the whole caption on article update.

Anything I can do?

Thanks.

Edit: for clarity, I’m using the most recent version of WP as well as the plugin.
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I have this in my functions.php (Note that those “Liit?” etc are working fine)

define( 'ATTACHMENTS_DEFAULT_INSTANCE', false );
function gallery_attachments( $attachments )
{
  $args = array(
    'Galleria' => 'My Attachments',
    'post_type' => ('post'),
    'filetype' => ('image'),
    'note' => 'Liit? gallerian kuvat t?h?n!',
    'button_text' => __('Liit?', 'attachments'),
    'modal_text' => __('Liit?', 'attachments'),

    // fields for this instance (array)
    'fields'        => array(
      array(
        'name'  => 'caption',                      // unique field name
        'type'  => 'text',                           // registered field type (field available in 3.0: text)
        'label' => __( 'Kuvateksti', 'attachments' ), // label to display
      ),
    ),
  );

  $attachments->register( 'gallery_attachments', $args ); // unique instance name
}

add_action( 'attachments_register', 'gallery_attachments' );

https://www.ads-software.com/extend/plugins/attachments/