diff --git a/db/Database.cpp b/db/Database.cpp
index eb05f31..2295ba8 100644
--- a/db/Database.cpp
+++ b/db/Database.cpp
@@ -3,6 +3,7 @@
 #include "fmt/includes.h"
 
 #include <QFile>
+#include <QDir>
 #include <QColor>
 
 namespace NekoGui {
@@ -10,34 +11,80 @@ namespace NekoGui {
     ProfileManager *profileManager = new ProfileManager();
 
     ProfileManager::ProfileManager() : JsonStore("groups/pm.json") {
-        callback_after_load = [this]() { LoadManager(); };
-        callback_before_save = [this]() { SaveManager(); };
-        _add(new configItem("profiles", &_profiles, itemType::integerList));
-        _add(new configItem("groups", &_groups, itemType::integerList));
+        _add(new configItem("groups", &groupsTabOrder, itemType::integerList));
+    }
+
+    QList<int> filterIntJsonFile(const QString &path) {
+        QList<int> result;
+        QDir dr(path);
+        auto entryList = dr.entryList(QDir::Files);
+        for (auto e: entryList) {
+            e = e.toLower();
+            if (!e.endsWith(".json", Qt::CaseInsensitive)) continue;
+            e = e.remove(".json", Qt::CaseInsensitive);
+            bool ok;
+            auto id = e.toInt(&ok);
+            if (ok) {
+                result << id;
+            }
+        }
+        std::sort(result.begin(), result.end());
+        return result;
     }
 
     void ProfileManager::LoadManager() {
+        JsonStore::Load();
+        //
         profiles = {};
         groups = {};
-        QList<int> invalidProfileId;
-        for (auto id: _profiles) {
+        profilesIdOrder = filterIntJsonFile("profiles");
+        groupsIdOrder = filterIntJsonFile("groups");
+        // Load Proxys
+        QList<int> delProfile;
+        for (auto id: profilesIdOrder) {
             auto ent = LoadProxyEntity(QString("profiles/%1.json").arg(id));
+            // Corrupted profile?
             if (ent == nullptr || ent->bean == nullptr || ent->bean->version == -114514) {
-                // clear invalid profile
-                invalidProfileId << id;
+                delProfile << id;
                 continue;
             }
             profiles[id] = ent;
         }
-        for (auto id: _groups) {
-            groups[id] = LoadGroup(QString("groups/%1.json").arg(id));
-        }
-        for (auto id: invalidProfileId) {
+        // Clear Corrupted profile
+        for (auto id: delProfile) {
             DeleteProfile(id);
         }
+        // Load Groups
+        auto loadedOrder = groupsTabOrder;
+        groupsTabOrder = {};
+        for (auto id: groupsIdOrder) {
+            auto ent = LoadGroup(QString("groups/%1.json").arg(id));
+            // Corrupted group?
+            if (ent->id != id) {
+                continue;
+            }
+            // Ensure order contains every group
+            if (!loadedOrder.contains(id)) {
+                loadedOrder << id;
+            }
+            groups[id] = ent;
+        }
+        // Ensure groups contains order
+        for (auto id: loadedOrder) {
+            if (groups.count(id)) {
+                groupsTabOrder << id;
+            }
+        }
+        // First setup
+        if (groups.empty()) {
+            auto defaultGroup = NekoGui::ProfileManager::NewGroup();
+            defaultGroup->name = QObject::tr("Default");
+            NekoGui::profileManager->AddGroup(defaultGroup);
+        }
     }
 
     void ProfileManager::SaveManager() {
+        JsonStore::Save();
     }
 
     std::shared_ptr<ProxyEntity> ProfileManager::LoadProxyEntity(const QString &jsonPath) {
@@ -153,7 +200,7 @@ namespace NekoGui {
         if (profiles.empty()) {
             return 0;
         } else {
-            return profiles.lastKey() + 1;
+            return profilesIdOrder.last() + 1;
         }
     }
 
@@ -165,8 +212,7 @@ namespace NekoGui {
         ent->gid = gid < 0 ? dataStore->current_group : gid;
         ent->id = NewProfileID();
         profiles[ent->id] = ent;
-        _profiles.push_back(ent->id);
-        Save();
+        profilesIdOrder.push_back(ent->id);
 
         ent->fn = QString("profiles/%1.json").arg(ent->id);
         ent->Save();
@@ -176,9 +222,8 @@ namespace NekoGui {
     void ProfileManager::DeleteProfile(int id) {
         if (id < 0) return;
         if (dataStore->started_id == id) return;
-        profiles.remove(id);
-        _profiles.removeAll(id);
-        Save();
+        profiles.erase(id);
+        profilesIdOrder.removeAll(id);
         QFile(QString("profiles/%1.json").arg(id)).remove();
     }
 
@@ -199,7 +244,7 @@ namespace NekoGui {
     }
 
     std::shared_ptr<ProxyEntity> ProfileManager::GetProfile(int id) {
-        return profiles.value(id, nullptr);
+        return profiles.count(id) ? profiles[id] : nullptr;
     }
 
     // Group
@@ -228,7 +273,7 @@ namespace NekoGui {
         if (groups.empty()) {
             return 0;
         } else {
-            return groups.lastKey() + 1;
+            return groupsIdOrder.last() + 1;
         }
     }
 
@@ -239,8 +284,8 @@ namespace NekoGui {
 
         ent->id = NewGroupID();
         groups[ent->id] = ent;
-        _groups.push_back(ent->id);
-        Save();
+        groupsIdOrder.push_back(ent->id);
+        groupsTabOrder.push_back(ent->id);
 
         ent->fn = QString("groups/%1.json").arg(ent->id);
         ent->Save();
@@ -248,22 +293,22 @@ namespace NekoGui {
     }
 
     void ProfileManager::DeleteGroup(int gid) {
-        if (groups.count() == 1) return;
+        if (groups.size() <= 1) return;
         QList<int> toDelete;
-        for (const auto &profile: profiles) {
-            if (profile->gid == gid) toDelete += profile->id; // map访问中，不能操作
+        for (const auto &[id, profile]: profiles) {
+            if (profile->gid == gid) toDelete += id; // map访问中，不能操作
         }
         for (const auto &id: toDelete) {
             DeleteProfile(id);
         }
-        groups.remove(gid);
-        _groups.removeAll(gid);
-        Save();
+        groups.erase(gid);
+        groupsIdOrder.removeAll(gid);
+        groupsTabOrder.removeAll(gid);
         QFile(QString("groups/%1.json").arg(gid)).remove();
     }
 
     std::shared_ptr<Group> ProfileManager::GetGroup(int id) {
-        return groups.value(id, nullptr);
+        return groups.count(id) ? groups[id] : nullptr;
     }
 
     std::shared_ptr<Group> ProfileManager::CurrentGroup() {
@@ -272,8 +317,8 @@ namespace NekoGui {
 
     QList<std::shared_ptr<ProxyEntity>> Group::Profiles() const {
         QList<std::shared_ptr<ProxyEntity>> ret;
-        for (const auto &ent: profileManager->profiles) {
-            if (id == ent->gid) ret += ent;
+        for (const auto &[_, profile]: profileManager->profiles) {
+            if (id == profile->gid) ret += profile;
         }
         return ret;
     }
diff --git a/db/Database.hpp b/db/Database.hpp
index e888fe9..dc7272f 100644
--- a/db/Database.hpp
+++ b/db/Database.hpp
@@ -5,18 +5,25 @@
 #include "Group.hpp"
 
 namespace NekoGui {
-    class ProfileManager : public JsonStore {
+    class ProfileManager : private JsonStore {
     public:
-        // Manager
-        QMap<int, std::shared_ptr<ProxyEntity>> profiles;
-        QMap<int, std::shared_ptr<Group>> groups;
+        // JsonStore
 
-        // JSON
-        QList<int> _profiles;
-        QList<int> _groups; // with order
+        // order -> id
+        QList<int> groupsTabOrder;
+
+        // Manager
+
+        std::map<int, std::shared_ptr<ProxyEntity>> profiles;
+        std::map<int, std::shared_ptr<Group>> groups;
 
         ProfileManager();
 
+        // LoadManager Reset and loads profiles & groups
+        void LoadManager();
+
+        void SaveManager();
+
         [[nodiscard]] static std::shared_ptr<ProxyEntity> NewProxyEntity(const QString &type);
 
         [[nodiscard]] static std::shared_ptr<Group> NewGroup();
@@ -38,9 +45,9 @@ namespace NekoGui {
         std::shared_ptr<Group> CurrentGroup();
 
     private:
-        void LoadManager();
-
-        void SaveManager();
+        // sort by id
+        QList<int> profilesIdOrder;
+        QList<int> groupsIdOrder;
 
         [[nodiscard]] int NewProfileID() const;
 
diff --git a/main/NekoGui.cpp b/main/NekoGui.cpp
index 15e0c82..154ecd8 100644
--- a/main/NekoGui.cpp
+++ b/main/NekoGui.cpp
@@ -348,13 +348,8 @@ namespace NekoGui {
     }
 
     QStringList Routing::List() {
-        QStringList l;
-        QDir d;
-        if (d.exists(ROUTES_PREFIX)) {
-            QDir dr(ROUTES_PREFIX);
-            return dr.entryList(QDir::Files);
-        }
-        return l;
+        QDir dr(ROUTES_PREFIX);
+        return dr.entryList(QDir::Files);
     }
 
     void Routing::SetToActive(const QString &name) {
diff --git a/rpc/gRPC.cpp b/rpc/gRPC.cpp
index 7b7f340..c07ad23 100644
--- a/rpc/gRPC.cpp
+++ b/rpc/gRPC.cpp
@@ -58,11 +58,6 @@ namespace QtGrpc {
         QString serviceName;
         QByteArray nekoray_auth;
 
-        // TODO Fixed?
-        // https://github.com/semlanik/qtprotobuf/issues/116
-        //        setCachingEnabled:  5  bytesDownloaded
-        //        QNetworkReplyImpl: backend error: caching was enabled after some bytes had been written
-
         // async
         QNetworkReply *post(const QString &method, const QString &service, const QByteArray &args) {
             QUrl callUrl = url_base + "/" + service + "/" + method;
diff --git a/translations/fa_IR.ts b/translations/fa_IR.ts
index abd8afa..98a4b16 100644
--- a/translations/fa_IR.ts
+++ b/translations/fa_IR.ts
@@ -1301,7 +1301,7 @@ This needs to be run NekoBox with administrator privileges.</source>
     </message>
     <message>
         <source>Default</source>
-        <translation>پیش فرض</translation>
+        <translation type="vanished">پیش فرض</translation>
     </message>
     <message>
         <source>Load routing and apply: %1</source>
@@ -1650,6 +1650,10 @@ Direct: %2</source>
         <source>As Subscription (add to this group)</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Default</source>
+        <translation type="unfinished">پیش فرض</translation>
+    </message>
 </context>
 <context>
     <name>Qv2ray::ui::widgets::AutoCompleteTextEdit</name>
diff --git a/translations/ru_RU.ts b/translations/ru_RU.ts
index 7a96af6..c0d0531 100644
--- a/translations/ru_RU.ts
+++ b/translations/ru_RU.ts
@@ -1314,7 +1314,7 @@ https://matsuridayo.github.io/n-configuration/#vpn-tun</translation>
     </message>
     <message>
         <source>Default</source>
-        <translation>По умолчанию</translation>
+        <translation type="vanished">По умолчанию</translation>
     </message>
     <message>
         <source>Load routing and apply: %1</source>
@@ -1646,6 +1646,10 @@ Release note:
         <source>Used: %1 Remain: %2 Expire: %3</source>
         <translation>Использовано: %1, осталось: %2, истекло: %3</translation>
     </message>
+    <message>
+        <source>Default</source>
+        <translation type="unfinished">По умолчанию</translation>
+    </message>
 </context>
 <context>
     <name>Qv2ray::ui::widgets::AutoCompleteTextEdit</name>
diff --git a/translations/zh_CN.ts b/translations/zh_CN.ts
index 604e69e..b80c543 100644
--- a/translations/zh_CN.ts
+++ b/translations/zh_CN.ts
@@ -1151,7 +1151,7 @@ This needs to be run NekoBox with administrator privileges.</source>
     </message>
     <message>
         <source>Default</source>
-        <translation>默认</translation>
+        <translation type="vanished">默认</translation>
     </message>
     <message>
         <source>Confirmation</source>
@@ -1644,6 +1644,10 @@ Release note:
         <source>As Subscription (add to this group)</source>
         <translation>作为订阅（添加到该组）</translation>
     </message>
+    <message>
+        <source>Default</source>
+        <translation type="unfinished">默认</translation>
+    </message>
 </context>
 <context>
     <name>Qv2ray::ui::widgets::AutoCompleteTextEdit</name>
diff --git a/ui/dialog_manage_groups.cpp b/ui/dialog_manage_groups.cpp
index 7a86b08..e86867e 100644
--- a/ui/dialog_manage_groups.cpp
+++ b/ui/dialog_manage_groups.cpp
@@ -24,7 +24,7 @@
 DialogManageGroups::DialogManageGroups(QWidget *parent) : QDialog(parent), ui(new Ui::DialogManageGroups) {
     ui->setupUi(this);
 
-    for (auto id: NekoGui::profileManager->_groups) {
+    for (auto id: NekoGui::profileManager->groupsTabOrder) {
         AddGroupToListIfExist(id)
     }
 
@@ -53,10 +53,10 @@ void DialogManageGroups::on_add_clicked() {
 
 void DialogManageGroups::on_update_all_clicked() {
     if (QMessageBox::question(this, tr("Confirmation"), tr("Update all subscriptions?")) == QMessageBox::StandardButton::Yes) {
-        for (const auto &gid: NekoGui::profileManager->_groups) {
+        for (const auto &gid: NekoGui::profileManager->groupsTabOrder) {
             auto group = NekoGui::profileManager->GetGroup(gid);
             if (group == nullptr || group->url.isEmpty()) continue;
-            UI_update_one_group(NekoGui::profileManager->_groups.indexOf(gid));
+            UI_update_one_group(NekoGui::profileManager->groupsTabOrder.indexOf(gid));
             return;
         }
     }
@@ -68,15 +68,15 @@ void UI_update_one_group(int _order) {
     std::shared_ptr<NekoGui::Group> nextGroup;
     forever {
         nextOrder += 1;
-        if (nextOrder >= NekoGui::profileManager->_groups.length()) break;
-        auto nextGid = NekoGui::profileManager->_groups[nextOrder];
+        if (nextOrder >= NekoGui::profileManager->groupsTabOrder.size()) break;
+        auto nextGid = NekoGui::profileManager->groupsTabOrder[nextOrder];
         nextGroup = NekoGui::profileManager->GetGroup(nextGid);
         if (nextGroup == nullptr || nextGroup->url.isEmpty()) continue;
         break;
     }
 
     // calculate this group
-    auto group = NekoGui::profileManager->GetGroup(NekoGui::profileManager->_groups[_order]);
+    auto group = NekoGui::profileManager->GetGroup(NekoGui::profileManager->groupsTabOrder[_order]);
     if (group == nullptr) return;
 
     // v2.2: listener is moved to GroupItem, no refresh here.
diff --git a/ui/edit/dialog_edit_group.cpp b/ui/edit/dialog_edit_group.cpp
index e86f002..22cbea7 100644
--- a/ui/edit/dialog_edit_group.cpp
+++ b/ui/edit/dialog_edit_group.cpp
@@ -44,7 +44,7 @@ DialogEditGroup::DialogEditGroup(const std::shared_ptr<NekoGui::Group> &ent, QWi
 
     connect(ui->copy_links, &QPushButton::clicked, this, [=] {
         QStringList links;
-        for (const auto &profile: NekoGui::profileManager->profiles) {
+        for (const auto &[_, profile]: NekoGui::profileManager->profiles) {
             if (profile->gid != ent->id) continue;
             links += profile->bean->ToShareLink();
         }
@@ -53,7 +53,7 @@ DialogEditGroup::DialogEditGroup(const std::shared_ptr<NekoGui::Group> &ent, QWi
     });
     connect(ui->copy_links_nkr, &QPushButton::clicked, this, [=] {
         QStringList links;
-        for (const auto &profile: NekoGui::profileManager->profiles) {
+        for (const auto &[_, profile]: NekoGui::profileManager->profiles) {
             if (profile->gid != ent->id) continue;
             links += profile->bean->ToNekorayShareLink(profile->type);
         }
diff --git a/ui/mainwindow.cpp b/ui/mainwindow.cpp
index 01a9b93..0942456 100644
--- a/ui/mainwindow.cpp
+++ b/ui/mainwindow.cpp
@@ -57,12 +57,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
     };
 
     // Load Manager
-    auto isLoaded = NekoGui::profileManager->Load();
-    if (!isLoaded) {
-        auto defaultGroup = NekoGui::ProfileManager::NewGroup();
-        defaultGroup->name = tr("Default");
-        NekoGui::profileManager->AddGroup(defaultGroup);
-    }
+    NekoGui::profileManager->LoadManager();
 
     // Setup misc UI
     themeManager->ApplyTheme(NekoGui::dataStore->theme);
@@ -72,11 +67,11 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
     connect(ui->menu_stop, &QAction::triggered, this, [=]() { neko_stop(); });
     connect(ui->tabWidget->tabBar(), &QTabBar::tabMoved, this, [=](int from, int to) {
         // use tabData to track tab & gid
-        NekoGui::profileManager->_groups.clear();
+        NekoGui::profileManager->groupsTabOrder.clear();
         for (int i = 0; i < ui->tabWidget->tabBar()->count(); i++) {
-            NekoGui::profileManager->_groups += ui->tabWidget->tabBar()->tabData(i).toInt();
+            NekoGui::profileManager->groupsTabOrder += ui->tabWidget->tabBar()->tabData(i).toInt();
         }
-        NekoGui::profileManager->Save();
+        NekoGui::profileManager->SaveManager();
     });
     ui->label_running->installEventFilter(this);
     ui->label_inbound->installEventFilter(this);
@@ -458,13 +453,13 @@ MainWindow::~MainWindow() {
 // Group tab manage
 
 inline int tabIndex2GroupId(int index) {
-    if (NekoGui::profileManager->_groups.length() <= index) return -1;
-    return NekoGui::profileManager->_groups[index];
+    if (NekoGui::profileManager->groupsTabOrder.length() <= index) return -1;
+    return NekoGui::profileManager->groupsTabOrder[index];
 }
 
 inline int groupId2TabIndex(int gid) {
-    for (int key = 0; key < NekoGui::profileManager->_groups.count(); key++) {
-        if (NekoGui::profileManager->_groups[key] == gid) return key;
+    for (int key = 0; key < NekoGui::profileManager->groupsTabOrder.count(); key++) {
+        if (NekoGui::profileManager->groupsTabOrder[key] == gid) return key;
     }
     return 0;
 }
@@ -646,6 +641,7 @@ void MainWindow::on_commitDataRequest() {
     }
     //
     NekoGui::dataStore->Save();
+    NekoGui::profileManager->SaveManager();
     qDebug() << "End of data save";
 }
 
@@ -903,7 +899,7 @@ void MainWindow::refresh_groups() {
     }
 
     int index = 0;
-    for (const auto &gid: NekoGui::profileManager->_groups) {
+    for (const auto &gid: NekoGui::profileManager->groupsTabOrder) {
         auto group = NekoGui::profileManager->GetGroup(gid);
         if (index == 0) {
             ui->tabWidget->setTabText(0, group->name);
@@ -923,7 +919,7 @@ void MainWindow::refresh_groups() {
     if (NekoGui::profileManager->CurrentGroup() == nullptr) {
         NekoGui::dataStore->current_group = -1;
         ui->tabWidget->setCurrentIndex(groupId2TabIndex(0));
-        show_group(NekoGui::profileManager->_groups.count() > 0 ? NekoGui::profileManager->_groups.first() : 0);
+        show_group(NekoGui::profileManager->groupsTabOrder.count() > 0 ? NekoGui::profileManager->groupsTabOrder.first() : 0);
     } else {
         ui->tabWidget->setCurrentIndex(groupId2TabIndex(NekoGui::dataStore->current_group));
         show_group(NekoGui::dataStore->current_group);
@@ -944,11 +940,11 @@ void MainWindow::refresh_proxy_list_impl(const int &id, GroupSortAction groupSor
         ui->proxyListTable->setRowCount(0);
         // 添加行
         int row = -1;
-        for (const auto &profile: NekoGui::profileManager->profiles) {
+        for (const auto &[id, profile]: NekoGui::profileManager->profiles) {
             if (NekoGui::dataStore->current_group != profile->gid) continue;
             row++;
             ui->proxyListTable->insertRow(row);
-            ui->proxyListTable->row2Id += profile->id;
+            ui->proxyListTable->row2Id += id;
         }
     }
 
@@ -1121,7 +1117,7 @@ void MainWindow::on_menu_move_triggered() {
     if (ents.isEmpty()) return;
 
     auto items = QStringList{};
-    for (auto gid: NekoGui::profileManager->_groups) {
+    for (auto gid: NekoGui::profileManager->groupsTabOrder) {
         auto group = NekoGui::profileManager->GetGroup(gid);
         if (group == nullptr) continue;
         items += Int2String(gid) + " " + group->name;
@@ -1170,7 +1166,7 @@ void MainWindow::on_menu_profile_debug_info_triggered() {
         QDesktopServices::openUrl(QUrl::fromLocalFile(QFileInfo(QString("profiles/%1.json").arg(ents.first()->id)).absoluteFilePath()));
     } else if (btn == 2) {
         NekoGui::dataStore->Load();
-        NekoGui::profileManager->Load();
+        NekoGui::profileManager->LoadManager();
         refresh_proxy_list();
     }
 }
@@ -1398,7 +1394,7 @@ void MainWindow::on_menu_update_subscription_triggered() {
 void MainWindow::on_menu_remove_unavailable_triggered() {
     QList<std::shared_ptr<NekoGui::ProxyEntity>> out_del;
 
-    for (const auto &profile: NekoGui::profileManager->profiles) {
+    for (const auto &[_, profile]: NekoGui::profileManager->profiles) {
         if (NekoGui::dataStore->current_group != profile->gid) continue;
         if (profile->latency < 0) out_del += profile;
     }
diff --git a/ui/widget/GroupItem.cpp b/ui/widget/GroupItem.cpp
index 195ee98..d3ff39d 100644
--- a/ui/widget/GroupItem.cpp
+++ b/ui/widget/GroupItem.cpp
@@ -116,7 +116,7 @@ void GroupItem::on_edit_clicked() {
 }
 
 void GroupItem::on_remove_clicked() {
-    if (NekoGui::profileManager->groups.count() == 1) return;
+    if (NekoGui::profileManager->groups.size() <= 1) return;
     if (QMessageBox::question(this, tr("Confirmation"), tr("Remove %1?").arg(ent->name)) ==
         QMessageBox::StandardButton::Yes) {
         NekoGui::profileManager->DeleteGroup(ent->id);