diff --git a/src/components/SystemSettingDialog.vue b/src/components/SystemSettingDialog.vue
index 8830438..92a96a1 100644
--- a/src/components/SystemSettingDialog.vue
+++ b/src/components/SystemSettingDialog.vue
@@ -644,6 +644,7 @@
           @click="apply"
         />
         <q-btn
+          v-if="false"
           :loading="loading"
           flat
           :label="$t('apply and exit')"
diff --git a/src/components/Window.vue b/src/components/Window.vue
index 1ae883e..98df7ed 100644
--- a/src/components/Window.vue
+++ b/src/components/Window.vue
@@ -252,6 +252,7 @@ import EventBus, { EventNamesDefine } from "src/common/EventBus";
 import GlobalData from "src/common/GlobalData";
 import { defineComponent, ref, watch, onUnmounted } from "vue";
 import { useStore } from "src/store";
+import { SignalSourceEntity } from "src/entities/SignalSourceEntity";
 
 class _Flags {
   get up_flag() {
@@ -298,9 +299,19 @@ export default defineComponent({
   setup(props, { emit }) {
     const $store = useStore();
 
-    const signal_source = ref(
-      GlobalData.getInstance().getSignalSource(props.signal_source_table_uuid)
-    );
+    const signal_source = ref(new SignalSourceEntity());
+
+    const reload_signal_source = () => {
+      SignalSourceEntity.copy(
+        signal_source.value,
+        GlobalData.getInstance().getSignalSource(props.signal_source_table_uuid)
+      );
+    };
+
+    reload_signal_source();
+    watch(props, (a, b) => {
+      reload_signal_source();
+    });
 
     let selected = ref(false);
     let focused = ref(false);