diff --git a/src/core/engine.cpp b/src/core/engine.cpp
--- a/src/core/engine.cpp
+++ b/src/core/engine.cpp
@@ -532,6 +532,13 @@
     qCDebug(KNEWSTUFFCORE) << "START  preview: " << entry.name() << type;
     ImageLoader *l = new ImageLoader(entry, type, this);
     connect(l, &ImageLoader::signalPreviewLoaded, this, &Engine::slotPreviewLoaded);
+    connect(l, &ImageLoader::signalError, this, [this](const KNSCore::EntryInternal &entry,
+                                                       EntryInternal::PreviewType type,
+                                                       const QString &errorText) {
+        qCDebug(KNEWSTUFFCORE) << "ERROR preview: " << errorText << entry.name() << type;
+        --m_numPictureJobs;
+        updateStatus();
+    });
     l->start();
     ++m_numPictureJobs;
     updateStatus();
diff --git a/src/core/imageloader.cpp b/src/core/imageloader.cpp
--- a/src/core/imageloader.cpp
+++ b/src/core/imageloader.cpp
@@ -33,9 +33,12 @@
 {
     QUrl url(m_entry.previewUrl(m_previewType));
     if (!url.isEmpty()) {
-        m_job = HTTPJob::get(url, NoReload, JobFlag::HideProgressInfo);
+        m_job = HTTPJob::get(url, NoReload, JobFlag::HideProgressInfo, this);
         connect(m_job, &KJob::result, this, &ImageLoader::slotDownload);
         connect(m_job, &HTTPJob::data, this, &ImageLoader::slotData);
+    } else {
+        emit signalError(m_entry, m_previewType, QStringLiteral("Empty url"));
+        deleteLater();
     }
 }
 
@@ -54,11 +57,12 @@
 {
     if (job->error()) {
         m_buffer.clear();
+        emit signalError(m_entry, m_previewType, job->errorText());
+        deleteLater();
         return;
     }
     QImage image;
-    image.loadFromData(m_buffer);
-    m_buffer.clear();
+    image.loadFromData(std::move(m_buffer));
 
     if (m_previewType == EntryInternal::PreviewSmall1
             || m_previewType == EntryInternal::PreviewSmall2
diff --git a/src/core/imageloader_p.h b/src/core/imageloader_p.h
--- a/src/core/imageloader_p.h
+++ b/src/core/imageloader_p.h
@@ -57,6 +57,7 @@
 
 Q_SIGNALS:
     void signalPreviewLoaded(const KNSCore::EntryInternal &, KNSCore::EntryInternal::PreviewType);
+    void signalError(const KNSCore::EntryInternal &, KNSCore::EntryInternal::PreviewType, const QString &);
 
 private Q_SLOTS:
     void slotDownload(KJob *job);