Facebook Module - Invalid access token on Android 2.3.x

Hi guys, I did a simple integration of the Facebook Module but I got strange errors only on 2.3.x Android versions:

• on Android 2.3.3 emulator when I click the FB login button the app crashes after a dozen of seconds with a generic error. I've read somewhere that it can be an emulator problem.

• on a REAL Android 2.3.7 device (with FB app installed) I can login the first time to Facebook with SSO, then correctly logout. After that, I can't login no more. Debugging directly on the device I can see this error:

  [ERROR][FacebookModule(13209)] (main) [95,95] LoginDialogListener onFacebookError: Invalid access token.
  [ERROR][FacebookModule(13209)] com.facebook.android.FacebookError: Invalid access token.

  and the login event handler is not fired. The code I used:

//tiapp.xml
 <property name="ti.facebook.appid">my-app-id</property>

//alloy.js
Alloy.Globals.Facebook = require('facebook');

//index.xml
<Alloy>
    <Window class="container">
        <!-- Use the Alloy.Globals.Facebook namespace to create a Facebook module login button -->
        <LoginButton id="fbButton" ns="Alloy.Globals.Facebook"/>
    </Window>
</Alloy>

//index.js
var facebook = Alloy.Globals.Facebook;
facebook.appid = "my-app-id";
facebook.permissions = [];
facebook.forceDialogAuth = false;
$.fbButton.style = facebook.BUTTON_STYLE_WIDE;
facebook.addEventListener('login', function(e) {
    if (e.success) {
        facebook.requestWithGraphPath('me', {}, 'GET', function(e) {
            if (e.success) {
                var data = JSON.parse(e.result);
                Ti.API.info(data.id);
            } else if (e.error) {
                alert(e.error);
            } else {
                alert('Unknown response.');
              }
        });
    } else {
        if (e.error) {
            alert(e.error);
        } else {
            alert("Unkown error while trying to login to facebook.");
        }
    }
});
facebook.addEventListener('logout', function(e) {
    //tried this outside the logout handler, just to reset cache on app launch, but without success
    var url = 'https://login.facebook.com';
    var client = Titanium.Network.createHTTPClient();
    client.clearCookies(url);
});

Titanium SDK: 3.1.2.GA on MacOS X. Facebook app is well configured, the FB integration works well in iOS emulator and Android 4.x emulator. Any suggestions?