Resolve other switch fallthrough issues

launcher/minecraft/auth/AccountList.cpp

@@ -357,11 +357,12 @@ QVariant AccountList::data(const QModelIndex &index, int role) const
             return QVariant::fromValue(account);
 
         case Qt::CheckStateRole:
-            switch (index.column())
-            {
-                case ProfileNameColumn:
-                    return account == m_defaultAccount ? Qt::Checked : Qt::Unchecked;
+            if (index.column() == ProfileNameColumn) {
+                return account == m_defaultAccount ? Qt::Checked : Qt::Unchecked;
+            } else {
+                return QVariant();
             }
+            
 
         default:
             return QVariant();

launcher/minecraft/auth/Yggdrasil.cpp

@@ -273,6 +273,7 @@ void Yggdrasil::processReply() {
             AccountTaskState::STATE_FAILED_GONE,
             tr("The Mojang account no longer exists. It may have been migrated to a Microsoft account.")
         );
+        return;
     }
     default:
         changeState(