This should hopefully get rid of the messages about parent being in the wrong thread

src/accounts/lastfm/LastFmAccount.cpp

@@ -76,6 +76,7 @@ LastFmAccount::LastFmAccount( const QString& accountId )
     {
         infoPlugin()->moveToThread( Tomahawk::InfoSystem::InfoSystem::instance()->workerThread().data() );
         Tomahawk::InfoSystem::InfoSystem::instance()->addInfoPlugin( infoPlugin() );
+        QMetaObject::invokeMethod( infoPlugin(), "init", Qt::QueuedConnection );
     }
 }
 

src/accounts/lastfm/lastfmplugin.cpp

@@ -46,7 +46,17 @@ LastFmPlugin::LastFmPlugin( LastFmAccount* account )
 {
     m_supportedGetTypes << InfoAlbumCoverArt << InfoArtistImages << InfoArtistSimilars << InfoArtistSongs << InfoChart << InfoChartCapabilities;
     m_supportedPushTypes << InfoSubmitScrobble << InfoSubmitNowPlaying << InfoLove << InfoUnLove;
+}
 
+
+void
+LastFmPlugin::init()
+{
+    if ( Tomahawk::InfoSystem::InfoSystem::instance()->workerThread() && thread() != Tomahawk::InfoSystem::InfoSystem::instance()->workerThread().data() )
+    {
+        tDebug() << "Failure: move to the worker thread before running init";
+        return;
+    }
     // Flush session key cache
     // TODO WHY FLUSH
 //     m_account->setSessionKey( QByteArray() );

src/accounts/lastfm/lastfmplugin.h

@@ -49,6 +49,7 @@ public:
     virtual ~LastFmPlugin();
 
 public slots:
+    void init();
     void settingsChanged();
 
     void onAuthenticated();

src/accounts/twitter/twitteraccount.cpp

@@ -192,6 +192,7 @@ TwitterAccount::connectAuthVerifyReply( const QTweetUser &user )
         {
             infoPlugin()->moveToThread( Tomahawk::InfoSystem::InfoSystem::instance()->workerThread().data() );
             Tomahawk::InfoSystem::InfoSystem::instance()->addInfoPlugin( infoPlugin() );
+            QMetaObject::invokeMethod( infoPlugin(), "init", Qt::QueuedConnection );
         }
 
         m_isAuthenticated = true;

src/accounts/twitter/twitterinfoplugin.cpp

@@ -38,7 +38,18 @@ TwitterInfoPlugin::TwitterInfoPlugin( Tomahawk::Accounts::TwitterAccount* accoun
     : m_account( account )
 {
     m_supportedPushTypes << InfoLove;
+}
 
+
+void
+TwitterInfoPlugin::init()
+{
+    if ( Tomahawk::InfoSystem::InfoSystem::instance()->workerThread() && thread() != Tomahawk::InfoSystem::InfoSystem::instance()->workerThread().data() )
+    {
+        tDebug() << "Failure: move to the worker thread before running init";
+        return;
+    }
+    
     QVariantHash credentials = m_account->credentials();
     if ( credentials[ "oauthtoken" ].toString().isEmpty() || credentials[ "oauthtokensecret" ].toString().isEmpty() )
     {

src/accounts/twitter/twitterinfoplugin.h

@@ -44,6 +44,7 @@ namespace Tomahawk {
             virtual ~TwitterInfoPlugin();
             
         public slots:
+            void init();
             void notInCacheSlot( const Tomahawk::InfoSystem::InfoStringHash criteria, Tomahawk::InfoSystem::InfoRequestData requestData )
             {
                 Q_UNUSED( criteria );