diff --git a/libs/build_go.sh b/libs/build_go.sh
index 174346e..5c1dbc4 100755
--- a/libs/build_go.sh
+++ b/libs/build_go.sh
@@ -34,5 +34,5 @@ popd
 
 #### Go: nekobox_core ####
 pushd go/cmd/nekobox_core
-go build -v -o $DEST -trimpath -ldflags "-w -s -X $neko_common.Version_neko=$version_standalone" -tags "with_grpc,with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api"
+go build -v -o $DEST -trimpath -ldflags "-w -s -X $neko_common.Version_neko=$version_standalone" -tags "with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api"
 popd
diff --git a/main/GuiUtils.hpp b/main/GuiUtils.hpp
index 6526eb2..82c729f 100644
--- a/main/GuiUtils.hpp
+++ b/main/GuiUtils.hpp
@@ -23,27 +23,37 @@
 #define D_C_SAVE_STRING(a) NekoGui::dataStore->a = CACHE.a;
 
 #define P_LOAD_STRING(a) ui->a->setText(bean->a);
+#define P_LOAD_STRING_PLAIN(a) ui->a->setPlainText(bean->a);
 #define P_SAVE_STRING(a) bean->a = ui->a->text();
-#define P_SAVE_STRING_QTEXTEDIT(a) bean->a = ui->a->toPlainText();
+#define P_SAVE_STRING_PLAIN(a) bean->a = ui->a->toPlainText();
+
 #define D_LOAD_STRING(a) ui->a->setText(NekoGui::dataStore->a);
+#define D_LOAD_STRING_PLAIN(a) ui->a->setPlainText(NekoGui::dataStore->a);
 #define D_SAVE_STRING(a) NekoGui::dataStore->a = ui->a->text();
-#define D_SAVE_STRING_QTEXTEDIT(a) NekoGui::dataStore->a = ui->a->toPlainText();
+#define D_SAVE_STRING_PLAIN(a) NekoGui::dataStore->a = ui->a->toPlainText();
+
 #define P_LOAD_INT(a)                    \
     ui->a->setText(Int2String(bean->a)); \
     ui->a->setValidator(QRegExpValidator_Number);
 #define P_SAVE_INT(a) bean->a = ui->a->text().toInt();
+
 #define D_LOAD_INT(a)                                  \
     ui->a->setText(Int2String(NekoGui::dataStore->a)); \
     ui->a->setValidator(QRegExpValidator_Number);
 #define D_SAVE_INT(a) NekoGui::dataStore->a = ui->a->text().toInt();
+
 #define P_LOAD_COMBO_STRING(a) ui->a->setCurrentText(bean->a);
 #define P_SAVE_COMBO_STRING(a) bean->a = ui->a->currentText();
+
 #define D_LOAD_COMBO_STRING(a) ui->a->setCurrentText(NekoGui::dataStore->a);
 #define D_SAVE_COMBO_STRING(a) NekoGui::dataStore->a = ui->a->currentText();
+
 #define P_LOAD_COMBO_INT(a) ui->a->setCurrentIndex(bean->a);
 #define P_SAVE_COMBO_INT(a) bean->a = ui->a->currentIndex();
+
 #define D_LOAD_BOOL(a) ui->a->setChecked(NekoGui::dataStore->a);
 #define D_SAVE_BOOL(a) NekoGui::dataStore->a = ui->a->isChecked();
+
 #define P_LOAD_BOOL(a) ui->a->setChecked(bean->a);
 #define P_SAVE_BOOL(a) bean->a = ui->a->isChecked();
 
diff --git a/ui/dialog_vpn_settings.cpp b/ui/dialog_vpn_settings.cpp
index 919ce86..8143291 100644
--- a/ui/dialog_vpn_settings.cpp
+++ b/ui/dialog_vpn_settings.cpp
@@ -25,8 +25,8 @@ DialogVPNSettings::DialogVPNSettings(QWidget *parent) : QDialog(parent), ui(new
     ui->single_core->setVisible(IS_NEKO_BOX);
     ui->single_core->setChecked(NekoGui::dataStore->vpn_internal_tun);
     //
-    D_LOAD_STRING(vpn_rule_cidr)
-    D_LOAD_STRING(vpn_rule_process)
+    D_LOAD_STRING_PLAIN(vpn_rule_cidr)
+    D_LOAD_STRING_PLAIN(vpn_rule_process)
     //
     connect(ui->whitelist_mode, &QCheckBox::stateChanged, this, [=](int state) {
         if (state == Qt::Checked) {
@@ -57,8 +57,8 @@ void DialogVPNSettings::accept() {
     NekoGui::dataStore->vpn_rule_white = ui->whitelist_mode->isChecked();
     NekoGui::dataStore->vpn_internal_tun = ui->single_core->isChecked();
     //
-    D_SAVE_STRING_QTEXTEDIT(vpn_rule_cidr)
-    D_SAVE_STRING_QTEXTEDIT(vpn_rule_process)
+    D_SAVE_STRING_PLAIN(vpn_rule_cidr)
+    D_SAVE_STRING_PLAIN(vpn_rule_process)
     //
     MW_dialog_message("", "UpdateDataStore,VPNChanged");
     QDialog::accept();
diff --git a/ui/dialog_vpn_settings.ui b/ui/dialog_vpn_settings.ui
index 3959bb6..33a2e87 100644
--- a/ui/dialog_vpn_settings.ui
+++ b/ui/dialog_vpn_settings.ui
@@ -144,7 +144,7 @@ This needs to be run NekoBox with administrator privileges.</string>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_2">
         <item>
-         <widget class="QTextEdit" name="vpn_rule_cidr"/>
+         <widget class="QPlainTextEdit" name="vpn_rule_cidr"/>
         </item>
        </layout>
       </widget>
@@ -156,7 +156,7 @@ This needs to be run NekoBox with administrator privileges.</string>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_4">
         <item>
-         <widget class="QTextEdit" name="vpn_rule_process"/>
+         <widget class="QPlainTextEdit" name="vpn_rule_process"/>
         </item>
        </layout>
       </widget>
diff --git a/ui/edit/dialog_edit_group.cpp b/ui/edit/dialog_edit_group.cpp
index c52f44d..e86f002 100644
--- a/ui/edit/dialog_edit_group.cpp
+++ b/ui/edit/dialog_edit_group.cpp
@@ -32,6 +32,7 @@ DialogEditGroup::DialogEditGroup(const std::shared_ptr<NekoGui::Group> &ent, QWi
     } else { // new group
         ui->front_proxy->hide();
         ui->front_proxy_l->hide();
+        ui->front_proxy_clear->hide();
     }
 
     CACHE.front_proxy = ent->front_proxy_id;
diff --git a/ui/edit/edit_custom.cpp b/ui/edit/edit_custom.cpp
index 97f71e9..1d75ad4 100644
--- a/ui/edit/edit_custom.cpp
+++ b/ui/edit/edit_custom.cpp
@@ -28,7 +28,7 @@ EditCustom::~EditCustom() {
 #define SAVE_CUSTOM_BEAN                            \
     P_SAVE_COMBO_STRING(core)                       \
     bean->command = ui->command->text().split(" "); \
-    P_SAVE_STRING_QTEXTEDIT(config_simple)          \
+    P_SAVE_STRING_PLAIN(config_simple)              \
     P_SAVE_COMBO_STRING(config_suffix)              \
     P_SAVE_INT(mapping_port)                        \
     P_SAVE_INT(socks_port)
@@ -62,7 +62,7 @@ void EditCustom::onStart(std::shared_ptr<NekoGui::ProxyEntity> _ent) {
     // load core ui
     P_LOAD_COMBO_STRING(core)
     ui->command->setText(bean->command.join(" "));
-    P_LOAD_STRING(config_simple)
+    ui->config_simple->setPlainText(bean->config_simple);
     P_LOAD_COMBO_STRING(config_suffix)
     P_LOAD_INT(mapping_port)
     P_LOAD_INT(socks_port)
@@ -75,7 +75,7 @@ void EditCustom::onStart(std::shared_ptr<NekoGui::ProxyEntity> _ent) {
         ui->core->setDisabled(true);
         ui->core->setCurrentText(preset_core);
         ui->command->setText(preset_command);
-        ui->config_simple->setText(preset_config);
+        ui->config_simple->setPlainText(preset_config);
     }
 
     // custom internal
@@ -145,6 +145,6 @@ void EditCustom::on_as_json_clicked() {
     auto editor = new JsonEditor(QString2QJsonObject(ui->config_simple->toPlainText()), this);
     auto result = editor->OpenEditor();
     if (!result.isEmpty()) {
-        ui->config_simple->setText(QJsonObject2QString(result, false));
+        ui->config_simple->setPlainText(QJsonObject2QString(result, false));
     }
 }
diff --git a/ui/edit/edit_custom.ui b/ui/edit/edit_custom.ui
index 4083657..cb1fa41 100644
--- a/ui/edit/edit_custom.ui
+++ b/ui/edit/edit_custom.ui
@@ -183,7 +183,7 @@
     </widget>
    </item>
    <item>
-    <widget class="QTextEdit" name="config_simple">
+    <widget class="QPlainTextEdit" name="config_simple">
      <property name="minimumSize">
       <size>
        <width>0</width>