nick.exile

Try adding one main level category, then save. Then add the second and third category and save (do NOT save after the second one is added).
Not a fix, but a usable workaround. Again, thank you for your awesome plugin.
Nick

Hi There, I am also suffering from this little issue, I have created two main categories, and when I add a third main category, this overwrites the second category. Any ideas? Absolutely love this plugin by the way!
Warm Regards,
Nick

After a good 6 hours of being infuriated, I found my way into the rabbit hole, and found me a real error message! Problems with an SSL. Whose SSL do you ask? Mine. Well thats funny, my site doesnt have a SSL Cert.

So, I went into the admin/functions.php file and changed the following all I did was add CURLOPT_SSL_VERIFYPEER => 0, to not validate the SSL.:

// Set some options - we are passing in a useragent too here
  curl_setopt_array($curl, array(
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL => 'https://api.instagram.com/oauth/access_token',
    CURLOPT_USERAGENT => 'Yakadanda Instagram Access Token Request',
    CURLOPT_POST => 1,
    CURLOPT_POSTFIELDS => array(
      'client_id' => $data['client_id'],
      'client_secret' => $data['client_secret'],
      'grant_type' => 'authorization_code',
      'redirect_uri' => admin_url('admin.php?page=yinstagram/settings.php'),
      'code' => $code
    )

to

// Set some options - we are passing in a useragent too here
  curl_setopt_array($curl, array(
    CURLOPT_SSL_VERIFYPEER => 0,
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL => 'https://api.instagram.com/oauth/access_token',
    CURLOPT_USERAGENT => 'Yakadanda Instagram Access Token Request',
    CURLOPT_POST => 1,
    CURLOPT_POSTFIELDS => array(
      'client_id' => $data['client_id'],
      'client_secret' => $data['client_secret'],
      'grant_type' => 'authorization_code',
      'redirect_uri' => admin_url('admin.php?page=yinstagram/settings.php'),
      'code' => $code
    )