Windows Phone Store localized app title is always displayed in English

Question

I tried to localize my app title using the WP7 AppResLib DLL Generator and it partially work. After installing, the application title in the application list adjust well to the phone's language. For now two languages are supported: Polish and English.

Unfortunately, the application title in the Windows Phone Store is always displayed in English (no matter which language is set as a phone language or which version of the Store's website I visit).

In the root folder of the project I have the following files:

• AppResLib.dll
• AppResLib.dll.0409.mui (0409 - English (United States))
• AppResLib.dll.0415.mui (0415 - Polish (Poland))

And that's how my WMAppManifest.xml file looks like:

<?xml version="1.0" encoding="utf-8"?>
<Deployment xmlns="http://schemas.microsoft.com/windowsphone/2012/deployment" AppPlatformVersion="8.0">
  <DefaultLanguage xmlns="" code="en-US" />
  <Languages xmlns="">
    <Language code="en-US" />
    <Language code="pl-PL" />
  </Languages>
 ...
</Deployment>

Can anyone tell me why it doesn't work as expected?

Remark: Solution provided in the Microsoft's article How to localize an app title for Windows Phone 8 didn't worked for me, since I had problems with compiling the resource project both in VS2012 Express for Windows Phone or VS2013 for Windows.