diff --git a/mainwindow.cpp b/mainwindow.cpp
index 42c5d3f..d1989cd 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -329,7 +329,8 @@ void MainWindow::onQuit() {
 }
 
 void MainWindow::scrollDownTextEdit() {
-    qCritical() << "ON REPLACE LAST CALLED AT" << QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+    Utils::printInfoMsg(QString("SCROLL-DOWN-TEXT_EDIT CALLED AT ")
+        + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
 
     ui->updateStatus->setEnabled(true);
 
@@ -340,30 +341,37 @@ void MainWindow::scrollDownTextEdit() {
 }
 
 void MainWindow::onAppendText(QString text, QString suffix) {
-    qCritical() << "ON APPEND CALLED AT" << QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+    Utils::printInfoMsg(QString("ON APPEND CALLED AT ")
+        + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
 
     QString editText = ui->updateStatus->toPlainText();
     if (!suffix.isNull() && suffix.size() > 0) {
         //qInfo() << "TEXT" << text << "SUFFIX" << suffix;
         if (suffix == Worker::UPDATE_STEP_SUCCESS || suffix == Worker::UPDATE_STEP_FAIL) {
-            editText += QString("\n").leftJustified(m_width-3, '=');
-            editText += " ";
+            ui->updateStatus->insertPlainText(QString("\n").leftJustified(m_width-3, '=') + " ");
+            // editText += QString("\n").leftJustified(m_width-3, '=');
+            // editText += " ";
         }
         QString const &add = (QString("\n") + text).leftJustified(m_width - (2 + suffix.size())) + suffix;
-        editText += add;
+        ui->updateStatus->insertPlainText(add);
+        // editText += add;
     } else {
         QString const &add = text.leftJustified(m_width-9);
-        editText += add;
+        ui->updateStatus->insertPlainText(add);
+        //editText += add;
     }
 
-    Utils::printLineEditInfo(editText.split('\n', QString::SplitBehavior::SkipEmptyParts));
-    ui->updateStatus->setText(editText.trimmed());
+    // debug
+    // QString editText = ui->updateStatus->toPlainText();
+    // Utils::printLineEditInfo(editText.split('\n', QString::SplitBehavior::SkipEmptyParts));
+    // ui->updateStatus->setText(editText.trimmed());
 
     scrollDownTextEdit();
 }
 
 void MainWindow::onReplaceLast(QStringList newTextLines, QString suffix) {
-    qCritical() << "ON REPLACE LAST CALLED AT" << QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+    Utils::printInfoMsg(QString("ON REPLACE LAST (LIST) CALLED AT ")
+        + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
 
     int const s = newTextLines.size();
     if (s > 0) {
@@ -397,7 +405,8 @@ void MainWindow::onReplaceLast(QStringList newTextLines, QString suffix) {
 }
 
 void MainWindow::onReplaceLast(QString text, QString suffix) {
-    qCritical() << "ON REPLACE LAST CALLED AT" << QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+    Utils::printInfoMsg(QString("ON REPLACE LAST (TEXT) CALLED AT ")
+        + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
 
     QString editText = ui->updateStatus->toPlainText();
     QStringList lines = editText.split('\n', QString::SplitBehavior::SkipEmptyParts);