Image thumbnail not showing up in email notification of order summary

OK, strangely enough, if I put http authentication in my site, I can see image thumbnail of the product in my email notification of order summary.
But I got that email after I click "Return to the store" link in PayPal page.

And I'm still using PayPal sandbox to test btw.

Anyone encounter this before? Any help would be greatly appreciated.
Many thanks.

Here I attached some screenshot to show the problem that I meant.
Thanks

Hi Ryan, thanks for replying.
OK, I think this might be issue with Message module that being used by default in DC Kickstart v2, I'll move this issue to there then, and see how it goes.
Thanks a lot for your time.
Cheers.

Hmmm... OK, I managed to debug it further using watchdog by creating another token in custom module using similar code as the one that used in Message module by implementing hook_entity_property_info_alter(&$info), then I put this token in Mime Mail module so it will send the order summary to my own email address.

The code can be seen below:

function custom_entity_property_info_alter(&$info) {
  $info['commerce_order']['properties']['order_summary'] = array(
    'label' => t('Custom order summary'),
    'description' => t('Custom order summary.'),
    'getter callback' => 'custom_get_order_summary',
  );
}

function custom_get_order_summary($order, array $options, $name) {
  $view = views_get_view('commerce_cart_summary');
  $view->set_arguments(array($order->order_id));
  $view->hide_admin_links = TRUE;
  watchdog('custom', 'Order id: <pre>@result</pre>  <pre>@view</pre>', array('@result' => print_r($order->order_id, TRUE), '@view' => print_r($view->preview(), TRUE)), WATCHDOG_DEBUG);

  return $view->preview();
}

And I checked in watchdog from Commerce PayPal and also from my custom module, I compared all the results between those 2 cases (the one that WITH http authentication, and the one that WITHOUT http authentication), I got something below:

The one that WITH http auth

Results from my costume module

- Location: http://www.something.com/checkout/128/payment
- Referrer: http://www.something.com/checkout/128/review
- Message:

    Order id:
128
<div class="view view-commerce-cart-summary view-id-commerce_cart_summary view-display-id-default view-dom-id-47f330991251dd1811aec4231ea84e36">
        
  
  
      <div class="view-content">
      <table class="views-table cols-5"  class="views-table cols-5">
    <thead>
    <tr>
              <th >
                  </th>
              <th class="views-field views-field-line-item-title" >
          Product        </th>
              <th class="views-field views-field-commerce-unit-price" >
          Price        </th>
              <th class="views-field views-field-quantity" >
          Quantity        </th>
              <th class="views-field views-field-commerce-total views-align-right" >
          Total        </th>
          </tr>
  </thead>
  <tbody>
          <tr class="odd views-row-first views-row-last" >
                  <td >
            
  <div class="field field-name-field-images field-type-image field-label-hidden">
    <img src="http://www.something.com/sites/something/files/styles/thumbnail/public/flowerpetal.jpg" width="100" height="100" alt="" />  </div>
          </td>
                  <td class="views-field views-field-line-item-title" >
            Item Code NVR0005          </td>
                  <td class="views-field views-field-commerce-unit-price price" >
            S$16.90          </td>
                  <td class="views-field views-field-quantity" >
            1          </td>
                  <td class="views-field views-field-commerce-total views-align-right price" >
            S$16.90          </td>
              </tr>
      </tbody>
</table>
    </div>
  
  
  
  
      <div class="view-footer">
      <div class="commerce-order-handler-area-order-total"><div class="field field-name-commerce-order-total field-type-commerce-price field-label-hidden"><div class="field-items"><div class="field-item even"><table class="commerce-price-formatted-components">
<tbody>
 <tr class="component-type-base-price odd"><td class="component-title">Subtotal</td><td class="component-total">S$16.90</td> </tr>
 <tr class="component-type-flat-rate-standard-shipping even"><td class="component-title">Shipping fee for order $80 and below</td><td class="component-total">S$2.00</td> </tr>
 <tr class="component-type-commerce-price-formatted-amount odd"><td class="component-title">Order total</td><td class="component-total">S$18.90</td> </tr>
</tbody>
</table>
</div></div></div></div>    </div>
  
  
</div>
  

Results from Commerce PayPal

*none*

The one that WITHOUT http auth

Results from my costume module

- Location: http://www.something.com/commerce_paypal/ipn/paypal_wps%7Ccommerce_payme...
- Referrer: *none*
- Message:

Order id:
129
<div class="view view-commerce-cart-summary view-id-commerce_cart_summary view-display-id-default view-dom-id-d128f7b7b090d038d55360b61ad7191f">
        
  
  
  
  
  
  
  
  
</div>

Results from Commerce PayPal

- Location: http://www.something.com/commerce_paypal/ipn/paypal_wps%7Ccommerce_payme...
- Referrer: *none*
- Message:

IPN validated for Order 129 with ID 56T74828VF021190X.
Array
(
    [mc_gross] => 51.80
    [invoice] => 129-1358373257
    [protection_eligibility] => Ineligible
    [item_number1] => 
    [payer_id] => MV4AVR8NJGVUC
    [tax] => 0.00
    [payment_date] => 13:47:19 Jan 16, 2013 PST
    [option_selection1_1] => 2
    [payment_status] => Pending
    [charset] => windows-1252
    [mc_shipping] => 0.00
    [mc_handling] => 0.00
    [first_name] => Ardi
    [notify_version] => 3.7
    [custom] => 
    [payer_status] => unverified
    [business] => something_1357926102_biz@gmail.com
    [num_cart_items] => 1
    [mc_handling1] => 0.00
    [verify_sign] => AI7Z66xwiyrzO.qnff89lvSfTrGLAWuUoyth63jNIS.QyMnQxq2A1t8-
    [payer_email] => something@gmail.com
    [mc_shipping1] => 0.00
    [tax1] => 0.00
    [option_name1_1] => Product count
    [txn_id] => 56T74828VF021190X
    [payment_type] => instant
    [last_name] => Test
    [item_name1] => Order 129 at SOMETHING
    [receiver_email] => something_1357926102_biz@gmail.com
    [quantity1] => 1
    [receiver_id] => 76JSF23QCZ9FY
    [pending_reason] => multi_currency
    [txn_type] => cart
    [mc_gross_1] => 51.80
    [mc_currency] => SGD
    [residence_country] => US
    [test_ipn] => 1
    [receipt_id] => 3505-9389-9157-2244
    [transaction_subject] => Shopping CartOrder 129 at SOMETHING
    [payment_gross] => 
    [ipn_track_id] => 6d8985d516749
    [order_id] => 129
)

As you can see from results above, for the one that WITHOUT using http auth, the display of the Views is not rendered/shown all, and there's watchdog shows up from Commerce PayPal. Where as for the other case is shown otherwise.

The one that I'm still not quite understand is the watchdog that comes from Commerce PayPal, it is always goes to: http://www.something.com/commerce_paypal/ipn/paypal_wps%7Ccommerce_payme...

Does this means something to you, Ryan (rszrama)? or anybody can help me with this perhaps?
Some hints or clue would be greatly appreciated.

Many thanks

I'm still stuck with this :-/
Anybody can help me with this please?
Thanks in advance

Nevermind about this, the issue still persist actually.
But I finally not using Views anymore, I just rendered everything what ever comes from the $order object, at least that's the solution for me so far.
Thanks