Fix

app/src/handlers/systemhandler.cpp

@@ -242,18 +242,18 @@ bool SystemHandler::applyKdeCursor(const QString &themeName) const
         << "c.group = 'Mouse';"
         << "c.writeEntry('cursorTheme', '" + themeName + "');";
 
-    /*if (setConfigWithPlasmaShell(script)) {
-        auto envMessage = QDBusMessage::createMethodCall("org.kde.klauncher5", "/KLauncher", "org.kde.KLauncher", "setLaunchEnv");
-        envMessage.setArguments(QVariantList() << QVariant(QString("XCURSOR_THEME")) << QVariant(themeName));
-        QDBusConnection::sessionBus().call(envMessage);
-
-        auto notifyMessage = QDBusMessage::createSignal("/KGlobalSettings", "org.kde.KGlobalSettings", "notifyChange");
-        notifyMessage.setArguments(QVariantList() << QVariant(qint32(5)) << QVariant(qint32(0)));
-        QDBusConnection::sessionBus().send(notifyMessage);
+    if (setConfigWithPlasmaShell(script)) {
+        auto setLaunchEnv = QDBusMessage::createMethodCall("org.kde.klauncher5", "/KLauncher", "org.kde.KLauncher", "setLaunchEnv");
+        setLaunchEnv.setArguments(QVariantList() << QVariant(QString("XCURSOR_THEME")) << QVariant(themeName));
+        QDBusConnection::sessionBus().call(setLaunchEnv);
+
+        auto notifyChange = QDBusMessage::createSignal("/KGlobalSettings", "org.kde.KGlobalSettings", "notifyChange");
+        notifyChange.setArguments(QVariantList() << QVariant(qint32(5)) << QVariant(qint32(0)));
+        QDBusConnection::sessionBus().send(notifyChange);
+
         return true;
     }
-    return false;*/
-    return setConfigWithPlasmaShell(script);
+    return false;
 }
 
 bool SystemHandler::applyKdePlasmaDesktoptheme(const QString &themeName) const