diff --git a/resources/binaries b/resources/binaries
index ae7084718..4a01edaec 160000
--- a/resources/binaries
+++ b/resources/binaries
@@ -1 +1 @@
-Subproject commit ae7084718c41afc01919779e58cd449e0eebd401
+Subproject commit 4a01edaec7d67d3b2ae81aeea2a3c876216fbab8
diff --git a/src/core/feeddownloader.cpp b/src/core/feeddownloader.cpp
index 49f1b592e..57a5fea3e 100755
--- a/src/core/feeddownloader.cpp
+++ b/src/core/feeddownloader.cpp
@@ -34,21 +34,15 @@ bool FeedDownloader::isUpdateRunning() const {
 }
 
 void FeedDownloader::updateAvailableFeeds() {
-  QList<CacheForServiceRoot*> caches;
-
   foreach (const Feed* feed, m_feeds) {
     CacheForServiceRoot* cache = dynamic_cast<CacheForServiceRoot*>(feed->getParentServiceRoot());
 
-    if (cache != nullptr && !caches.contains(cache)) {
-      caches.append(cache);
+    if (cache != nullptr) {
+      qDebug("Saving cache for feed with DB ID %d and title '%s'.", feed->id(), qPrintable(feed->title()));
+      cache->saveAllCachedData(false);
     }
   }
 
-  // Now, we synchronously save cached data.
-  foreach (CacheForServiceRoot* cache, caches) {
-    cache->saveAllCachedData(false);
-  }
-
   while (!m_feeds.isEmpty()) {
     connect(m_feeds.first(), &Feed::messagesObtained, this, &FeedDownloader::oneFeedUpdateFinished,
             (Qt::ConnectionType)(Qt::UniqueConnection | Qt::AutoConnection));
@@ -58,6 +52,8 @@ void FeedDownloader::updateAvailableFeeds() {
       m_feedsUpdating++;
     }
     else {
+      qCritical("User wanted to update some feeds but all working threads are occupied.");
+
       // We want to start update of some feeds but all working threads are occupied.
       break;
     }
@@ -103,9 +99,10 @@ void FeedDownloader::oneFeedUpdateFinished(const QList<Message>& messages, bool
   updateAvailableFeeds();
 
   // Now make sure, that messages are actually stored to SQL in a locked state.
-  qDebug().nospace() << "Saving messages of feed "
-                     << feed->customId() << " in thread: \'"
+  qDebug().nospace() << "Saving messages of feed ID "
+                     << feed->customId() << " URL: " << feed->url() << " title: " << feed->title() << " in thread: \'"
                      << QThread::currentThreadId() << "\'.";
+
   int updated_messages = feed->updateMessages(messages, error_during_obtaining);
 
   qDebug("%d messages for feed %s stored in DB.", updated_messages, qPrintable(feed->customId()));
diff --git a/src/main.cpp b/src/main.cpp
index 5383d9e3b..79dd3caeb 100755
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -67,6 +67,7 @@ int main(int argc, char* argv[]) {
                                          QDir::separator() + QL1S("rssguard.log"));
   }
 
+  qDebug("Starting %s.", qPrintable(QSL(APP_LONG_NAME)));
   qDebug("Instantiated Application class.");
 
   // Check if another instance is running.
diff --git a/src/miscellaneous/databasequeries.cpp b/src/miscellaneous/databasequeries.cpp
index 32aba4349..aa2025be5 100755
--- a/src/miscellaneous/databasequeries.cpp
+++ b/src/miscellaneous/databasequeries.cpp
@@ -522,6 +522,9 @@ int DatabaseQueries::updateMessages(QSqlDatabase db,
       query_select_with_url.bindValue(QSL(":author"), message.m_author);
       query_select_with_url.bindValue(QSL(":account_id"), account_id);
 
+      qDebug("Checking if message with title '%s', url '%s' and author '%s' is present in DB.",
+             qPrintable(message.m_title), qPrintable(message.m_url), qPrintable(message.m_author));
+
       if (query_select_with_url.exec() && query_select_with_url.next()) {
         id_existing_message = query_select_with_url.value(0).toInt();
         date_existing_message = query_select_with_url.value(1).value<qint64>();
@@ -529,6 +532,9 @@ int DatabaseQueries::updateMessages(QSqlDatabase db,
         is_important_existing_message = query_select_with_url.value(3).toBool();
         contents_existing_message = query_select_with_url.value(4).toString();
         feed_id_existing_message = query_select_with_url.value(5).toString();
+
+        qDebug("Message with these attributes is already present in DB and has DB ID %d.",
+               qPrintable(message.m_customId), id_existing_message);
       }
       else if (query_select_with_url.lastError().isValid()) {
         qWarning("Failed to check for existing message in DB via URL: '%s'.", qPrintable(query_select_with_url.lastError().text()));
@@ -542,6 +548,8 @@ int DatabaseQueries::updateMessages(QSqlDatabase db,
       query_select_with_id.bindValue(QSL(":account_id"), account_id);
       query_select_with_id.bindValue(QSL(":custom_id"), message.m_customId);
 
+      qDebug("Checking if message with custom ID %s is present in DB.", qPrintable(message.m_customId));
+
       if (query_select_with_id.exec() && query_select_with_id.next()) {
         id_existing_message = query_select_with_id.value(0).toInt();
         date_existing_message = query_select_with_id.value(1).value<qint64>();
@@ -549,6 +557,9 @@ int DatabaseQueries::updateMessages(QSqlDatabase db,
         is_important_existing_message = query_select_with_id.value(3).toBool();
         contents_existing_message = query_select_with_id.value(4).toString();
         feed_id_existing_message = query_select_with_id.value(5).toString();
+
+        qDebug("Message with custom ID %s is already present in DB and has DB ID %d.",
+               qPrintable(message.m_customId), id_existing_message);
       }
       else if (query_select_with_id.lastError().isValid()) {
         qDebug("Failed to check for existing message in DB via ID: '%s'.", qPrintable(query_select_with_id.lastError().text()));
@@ -584,15 +595,18 @@ int DatabaseQueries::updateMessages(QSqlDatabase db,
         query_update.bindValue(QSL(":id"), id_existing_message);
         *any_message_changed = true;
 
-        if (query_update.exec() && !message.m_isRead) {
-          updated_messages++;
+        if (query_update.exec()) {
+          qDebug("Updating message with title '%s' url '%s' in DB.", qPrintable(message.m_title), qPrintable(message.m_url));
+
+          if (!message.m_isRead) {
+            updated_messages++;
+          }
         }
         else if (query_update.lastError().isValid()) {
           qWarning("Failed to update message in DB: '%s'.", qPrintable(query_update.lastError().text()));
         }
 
         query_update.finish();
-        qDebug("Updating message '%s' in DB.", qPrintable(message.m_title));
       }
     }
     else {
@@ -613,7 +627,7 @@ int DatabaseQueries::updateMessages(QSqlDatabase db,
       if (query_insert.exec() && query_insert.numRowsAffected() == 1) {
         updated_messages++;
 
-        //qDebug("Added new message '%s' to DB.", qPrintable(message.m_title));
+        qDebug("Adding new message with title '%s' url '%s' to DB.", qPrintable(message.m_title), qPrintable(message.m_url));
       }
       else if (query_insert.lastError().isValid()) {
         qWarning("Failed to insert message to DB: '%s' - message title is '%s'.",
diff --git a/src/miscellaneous/feedreader.cpp b/src/miscellaneous/feedreader.cpp
index b861b797a..d1628547e 100755
--- a/src/miscellaneous/feedreader.cpp
+++ b/src/miscellaneous/feedreader.cpp
@@ -69,6 +69,8 @@ void FeedReader::updateFeeds(const QList<Feed*>& feeds) {
   }
 
   if (m_feedDownloader == nullptr) {
+    qDebug("Creating FeedDownloader singleton.");
+
     m_feedDownloader = new FeedDownloader();
     m_feedDownloaderThread = new QThread();
 
diff --git a/src/services/abstract/feed.cpp b/src/services/abstract/feed.cpp
index be318f336..b64cae10c 100755
--- a/src/services/abstract/feed.cpp
+++ b/src/services/abstract/feed.cpp
@@ -163,15 +163,16 @@ void Feed::updateCounts(bool including_total_count) {
 }
 
 void Feed::run() {
-  qDebug().nospace() << "Downloading new messages for feed "
-                     << customId() << " in thread: \'"
+  qDebug().nospace() << "Downloading new messages for feed ID "
+                     << customId() << " URL: " << url() << " title: " << title() << " in thread: \'"
                      << QThread::currentThreadId() << "\'.";
 
   bool error_during_obtaining = false;
 
   QList<Message> msgs = obtainNewMessages(&error_during_obtaining);
-  qDebug().nospace() << "Downloaded " << msgs.size() << " messages for feed "
-                     << customId() << " in thread: \'"
+
+  qDebug().nospace() << "Downloaded " << msgs.size() << " messages for feed ID "
+                     << customId() << " URL: " << url() << " title: " << title() << " in thread: \'"
                      << QThread::currentThreadId() << "\'.";
 
   // Now, do some general operations on messages (tweak encoding etc.).
@@ -229,6 +230,9 @@ int Feed::updateMessages(const QList<Message>& messages, bool error_during_obtai
 
     updated_messages = DatabaseQueries::updateMessages(database, messages, custom_id, account_id, url(), &anything_updated, &ok);
   }
+  else {
+    qWarning("There are no messages for update.");
+  }
 
   if (ok) {
     setStatus(updated_messages > 0 ? NewMessages : Normal);
@@ -244,8 +248,12 @@ int Feed::updateMessages(const QList<Message>& messages, bool error_during_obtai
     qCritical("There is indication that there was error during messages obtaining.");
   }
 
-  items_to_update.append(this);
-  getParentServiceRoot()->itemChanged(items_to_update);
+  if (ok && !messages.isEmpty()) {
+    // Some messages were really added to DB, reload feed in model.
+    items_to_update.append(this);
+    getParentServiceRoot()->itemChanged(items_to_update);
+  }
+
   return updated_messages;
 }
 
diff --git a/src/services/abstract/serviceroot.cpp b/src/services/abstract/serviceroot.cpp
index 90a08304a..3b2dfb1d9 100755
--- a/src/services/abstract/serviceroot.cpp
+++ b/src/services/abstract/serviceroot.cpp
@@ -397,6 +397,18 @@ bool ServiceRoot::markFeedsReadUnread(QList<Feed*> items, RootItem::ReadStatus r
   }
 }
 
+QStringList ServiceRoot::textualFeedUrls(const QList<Feed*>& feeds) const {
+  QStringList stringy_urls;
+
+  stringy_urls.reserve(feeds.size());
+
+  foreach (const Feed* feed, feeds) {
+    stringy_urls.append(!feed->url().isEmpty() ? feed->url() : QL1S("no-url"));
+  }
+
+  return stringy_urls;
+}
+
 QStringList ServiceRoot::textualFeedIds(const QList<Feed*>& feeds) const {
   QStringList stringy_ids;
 
@@ -439,19 +451,20 @@ void ServiceRoot::setAccountId(int account_id) {
 
 bool ServiceRoot::loadMessagesForItem(RootItem* item, MessagesModel* model) {
   if (item->kind() == RootItemKind::Bin) {
-    model->setFilter(QString("Messages.is_deleted = 1 AND Messages.is_pdeleted = 0 AND Messages.account_id = %1").arg(QString::number(
-                                                                                                                        accountId())));
+    model->setFilter(QString("Messages.is_deleted = 1 AND Messages.is_pdeleted = 0 AND Messages.account_id = %1")
+                     .arg(QString::number(accountId())));
   }
   else {
     QList<Feed*> children = item->getSubTreeFeeds();
     QString filter_clause = textualFeedIds(children).join(QSL(", "));
+    QString urls = textualFeedUrls(children).join(QSL(", "));
 
     model->setFilter(
       QString("Feeds.custom_id IN (%1) AND Messages.is_deleted = 0 AND Messages.is_pdeleted = 0 AND Messages.account_id = %2").arg(
         filter_clause,
         QString::
         number(accountId())));
-    qDebug("Loading messages from feeds: %s.", qPrintable(filter_clause));
+    qDebug("Displaying messages from feeds IDs: %s and URLs: %s.", qPrintable(filter_clause), qPrintable(urls));
   }
 
   return true;
diff --git a/src/services/abstract/serviceroot.h b/src/services/abstract/serviceroot.h
index 67ccd4bce..634a96a0e 100755
--- a/src/services/abstract/serviceroot.h
+++ b/src/services/abstract/serviceroot.h
@@ -173,6 +173,7 @@ class ServiceRoot : public RootItem {
     // from another machine and then performs sync-in on this machine.
     void removeLeftOverMessages();
 
+    QStringList textualFeedUrls(const QList<Feed*>& feeds) const;
     QStringList textualFeedIds(const QList<Feed*>& feeds) const;
     QStringList customIDsOfMessages(const QList<ImportanceChange>& changes);
     QStringList customIDsOfMessages(const QList<Message>& messages);
diff --git a/src/services/standard/atomparser.cpp b/src/services/standard/atomparser.cpp
index 2395cd62b..a1d4ac505 100755
--- a/src/services/standard/atomparser.cpp
+++ b/src/services/standard/atomparser.cpp
@@ -84,7 +84,7 @@ Message AtomParser::extractMessage(const QDomElement& msg_element, QDateTime cur
 
     if (attribute == QSL("enclosure")) {
       new_message.m_enclosures.append(Enclosure(link.attribute(QSL("href")), link.attribute(QSL("type"))));
-      qDebug("Adding enclosure '%s' for the message.", qPrintable(new_message.m_enclosures.last().m_url));
+      qDebug("Found enclosure '%s' for the message.", qPrintable(new_message.m_enclosures.last().m_url));
     }
     else if (attribute.isEmpty() || attribute == QSL("alternate")) {
       last_link_alternate = link.attribute(QSL("href"));
diff --git a/src/services/standard/rssparser.cpp b/src/services/standard/rssparser.cpp
index c6189b243..6a22d3878 100755
--- a/src/services/standard/rssparser.cpp
+++ b/src/services/standard/rssparser.cpp
@@ -58,7 +58,7 @@ Message RssParser::extractMessage(const QDomElement& msg_element, QDateTime curr
 
   if (!elem_enclosure.isEmpty()) {
     new_message.m_enclosures.append(Enclosure(elem_enclosure, elem_enclosure_type));
-    qDebug("Adding enclosure '%s' for the message.", qPrintable(elem_enclosure));
+    qDebug("Found enclosure '%s' for the message.", qPrintable(elem_enclosure));
   }
 
   // Deal with link and author.
diff --git a/src/services/standard/standardfeed.cpp b/src/services/standard/standardfeed.cpp
index ede63646e..c85d937e4 100755
--- a/src/services/standard/standardfeed.cpp
+++ b/src/services/standard/standardfeed.cpp
@@ -418,7 +418,7 @@ QList<Message> StandardFeed::obtainNewMessages(bool* error_during_obtaining) {
     *error_during_obtaining = true;
     return QList<Message>();
   }
-  else if (status() != NewMessages) {
+  else {
     *error_during_obtaining = false;
   }