diff -r 57ed3981db20 -r b9437746bffb QTfrontend/ui/widget/feedbackdialog.cpp
--- a/QTfrontend/ui/widget/feedbackdialog.cpp	Thu Apr 25 21:32:22 2019 +0300
+++ b/QTfrontend/ui/widget/feedbackdialog.cpp	Thu Apr 25 21:24:27 2019 +0200
@@ -330,6 +330,7 @@
     msgMsg.setIcon(QMessageBox::Warning);
     msgMsg.setWindowTitle(QMessageBox::tr("Hedgewars - Error"));
     msgMsg.setText(msg);
+    msgMsg.setTextFormat(Qt::PlainText);
     msgMsg.setWindowModality(Qt::WindowModal);
     msgMsg.exec();
 }
@@ -417,6 +418,7 @@
             infoMsg.setIcon(QMessageBox::Information);
             infoMsg.setWindowTitle(QMessageBox::tr("Hedgewars - Success"));
             infoMsg.setText(reply->readAll());
+            infoMsg.setTextFormat(Qt::PlainText);
             infoMsg.setWindowModality(Qt::WindowModal);
             infoMsg.exec();