diff --git a/launcher/ui/pages/instance/ManagedPackPage.cpp b/launcher/ui/pages/instance/ManagedPackPage.cpp
index dc983d9a9..593590f70 100644
--- a/launcher/ui/pages/instance/ManagedPackPage.cpp
+++ b/launcher/ui/pages/instance/ManagedPackPage.cpp
@@ -62,8 +62,11 @@ ManagedPackPage::ManagedPackPage(BaseInstance* inst, InstanceWindow* instance_wi
 
     // NOTE: GTK2 themes crash with the proxy style.
     // This seems like an upstream bug, so there's not much else that can be done.
-    if (!QStyleFactory::keys().contains("gtk2"))
-        ui->versionsComboBox->setStyle(new NoBigComboBoxStyle(ui->versionsComboBox->style()));
+    if (!QStyleFactory::keys().contains("gtk2")){
+        auto comboStyle = new NoBigComboBoxStyle(ui->versionsComboBox->style());
+        comboStyle->setParent(APPLICATION); // make sure this gets cleaned up (setting to simply `this` causes it to be freed too soon)
+        ui->versionsComboBox->setStyle(comboStyle);
+    }
 
     ui->reloadButton->setVisible(false);
     connect(ui->reloadButton, &QPushButton::clicked, this, [this](bool){
diff --git a/libraries/katabasis/src/Reply.cpp b/libraries/katabasis/src/Reply.cpp
index 3e27a7e6b..c26079005 100644
--- a/libraries/katabasis/src/Reply.cpp
+++ b/libraries/katabasis/src/Reply.cpp
@@ -40,6 +40,8 @@ void ReplyList::remove(QNetworkReply *reply) {
     if (o2Reply) {
         o2Reply->stop();
         (void)replies_.removeOne(o2Reply);
+        // we took ownership, we must free
+        delete o2Reply;
     }
 }