diff --git a/src/gui/folder.cpp b/src/gui/folder.cpp
index 1fa78ff83..a4f2e25fa 100644
--- a/src/gui/folder.cpp
+++ b/src/gui/folder.cpp
@@ -113,6 +113,8 @@ Folder::Folder(const FolderDefinition& definition,
 
 Folder::~Folder()
 {
+    // Reset then engine first as it will abort and try to access members of the Folder
+    _engine.reset();
 }
 
 void Folder::checkLocalPath()
diff --git a/src/gui/protocolwidget.cpp b/src/gui/protocolwidget.cpp
index c96fa1de3..8955dc7b7 100644
--- a/src/gui/protocolwidget.cpp
+++ b/src/gui/protocolwidget.cpp
@@ -121,17 +121,9 @@ void ProtocolWidget::hideEvent(QHideEvent *ev)
 
 void ProtocolWidget::cleanItems(const QString& folder)
 {
-    int itemCnt = _ui->_treeWidget->topLevelItemCount();
-
-    // Limit the number of items
-    while(itemCnt > 2000) {
-        delete _ui->_treeWidget->takeTopLevelItem(itemCnt - 1);
-        itemCnt--;
-    }
-
     // The issue list is a state, clear it and let the next sync fill it
     // with ignored files and propagation errors.
-    itemCnt = _issueItemView->topLevelItemCount();
+    int itemCnt = _issueItemView->topLevelItemCount();
     for( int cnt = itemCnt-1; cnt >=0 ; cnt-- ) {
         QTreeWidgetItem *item = _issueItemView->topLevelItem(cnt);
         QString itemFolder = item->data(2, Qt::UserRole).toString();
@@ -239,6 +231,12 @@ void ProtocolWidget::slotItemCompleted(const QString &folder, const SyncFileItem
             _issueItemView->insertTopLevelItem(0, line);
             emit issueItemCountUpdated(_issueItemView->topLevelItemCount());
         } else {
+            // Limit the number of items
+            int itemCnt = _ui->_treeWidget->topLevelItemCount();
+            while(itemCnt > 2000) {
+                delete _ui->_treeWidget->takeTopLevelItem(itemCnt - 1);
+                itemCnt--;
+            }
             _ui->_treeWidget->insertTopLevelItem(0, line);
         }
     }
diff --git a/src/libsync/propagateupload.cpp b/src/libsync/propagateupload.cpp
index 5875ae739..f60106244 100644
--- a/src/libsync/propagateupload.cpp
+++ b/src/libsync/propagateupload.cpp
@@ -234,6 +234,8 @@ void PropagateUploadFileQNAM::slotComputeContentChecksum()
 
     connect(computeChecksum, SIGNAL(done(QByteArray,QByteArray)),
             SLOT(slotComputeTransmissionChecksum(QByteArray,QByteArray)));
+    connect(computeChecksum, SIGNAL(done(QByteArray,QByteArray)),
+            computeChecksum, SLOT(deleteLater()));
     computeChecksum->start(filePath);
 }
 
@@ -268,6 +270,8 @@ void PropagateUploadFileQNAM::slotComputeTransmissionChecksum(const QByteArray&
 
     connect(computeChecksum, SIGNAL(done(QByteArray,QByteArray)),
             SLOT(slotStartUpload(QByteArray,QByteArray)));
+    connect(computeChecksum, SIGNAL(done(QByteArray,QByteArray)),
+            computeChecksum, SLOT(deleteLater()));
     const QString filePath = _propagator->getFilePath(_item->_file);
     computeChecksum->start(filePath);
 }
@@ -775,6 +779,8 @@ void PropagateUploadFileQNAM::slotPutFinished()
              << _stopWatch.durationOfLap(QLatin1String("ContentChecksum"))
              << _stopWatch.durationOfLap(QLatin1String("TransmissionChecksum"))
              << _item->_requestDuration;
+    // The job might stay alive for the whole sync, release this tiny bit of memory.
+    _stopWatch.reset();
 
     finalize(*_item);
 }
diff --git a/src/libsync/utility.h b/src/libsync/utility.h
index 044988fe1..6dd2f1788 100644
--- a/src/libsync/utility.h
+++ b/src/libsync/utility.h
@@ -20,7 +20,7 @@
 #include <QByteArray>
 #include <QDateTime>
 #include <QElapsedTimer>
-#include <QHash>
+#include <QMap>
 
 namespace OCC {
 
@@ -121,7 +121,7 @@ namespace Utility
 
     class OWNCLOUDSYNC_EXPORT StopWatch {
     private:
-        QHash<QString, quint64> _lapTimes;
+        QMap<QString, quint64> _lapTimes;
         QDateTime _startTime;
         QElapsedTimer _timer;
     public: