diff --git a/src/gui/main.cpp b/src/gui/main.cpp
index 485a2c4..4c68a9b 100644
--- a/src/gui/main.cpp
+++ b/src/gui/main.cpp
@@ -623,9 +623,14 @@ int main(int argc, char *argv[]) {
 #endif
 
 #if CHINESE_FONT
-      ImGui::Begin(u8"菜单", nullptr,
-                   ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                       ImGuiWindowFlags_NoMove);
+      if (!joined) {
+        ImGui::Begin(u8"菜单", nullptr,
+                     ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                         ImGuiWindowFlags_NoMove);
+      } else {
+        ImGui::SetNextWindowCollapsed(true, ImGuiCond_Once);
+        ImGui::Begin(u8"菜单", nullptr, ImGuiWindowFlags_None);
+      }
 #else
       ImGui::Begin("Menu", nullptr, ImGuiWindowFlags_NoResize);
 #endif
diff --git a/thirdparty/projectx b/thirdparty/projectx
index 3ea4d07..9122d0d 160000
--- a/thirdparty/projectx
+++ b/thirdparty/projectx
@@ -1 +1 @@
-Subproject commit 3ea4d0724d20beeb2c582cd136d879bb6b5fd4ef
+Subproject commit 9122d0d15f3b3094e613cdfc372c7f8a0f6b6d62