temporary fix improvement

res/project_client.lua

@@ -1,32 +1,32 @@
 local menubg
 
 function on_menu_clear()
-    print("menu clear")
     if menubg then
         menubg:destruct()
         menubg = nil
     end
 end
 
-function on_menu_setup()
-    -- //TODO: 
-    time.post_runnable(function()
-        local controller = {}
-        function controller.resize_menu_bg()
-            local w, h = unpack(gui.get_viewport())
-            if menubg then
-                menubg.region = {0, math.floor(h / 48), math.floor(w / 48), 0}
-                menubg.pos = {0, 0}
-            end
-            return w, h
+local function setup_backround()
+    local controller = {}
+    function controller.resize_menu_bg()
+        local w, h = unpack(gui.get_viewport())
+        if menubg then
+            menubg.region = {0, math.floor(h / 48), math.floor(w / 48), 0}
+            menubg.pos = {0, 0}
         end
-        gui.root.root:add(
-        "<image id='menubg' src='gui/menubg' size-func='DATA.resize_menu_bg' "..
-        "z-index='-1' interactive='true'/>", controller)
-        menubg = gui.root.menubg  
-        controller.resize_menu_bg()
-    end)
+        return w, h
+    end
+    local bgid = random.uuid()
+    gui.root.root:add(string.format(
+        "<image id='%s' src='gui/menubg' size-func='DATA.resize_menu_bg' "..
+        "z-index='-1' interactive='true'/>", bgid), controller)
+    menubg = gui.root[bgid]
+    controller.resize_menu_bg()
+end
 
+function on_menu_setup()
+    setup_backround()
     menu.page = "main"
     menu.visible = true
 end

src/graphics/ui/elements/UINode.cpp

@@ -390,9 +390,14 @@ void UINode::getIndices(
     const std::string& id = node->getId();
     if (!id.empty()) {
         const auto& found = map.find(id);
-        if (found == map.end() || found->second.expired()) {
-            map[id] = node;
+
+        if (found != map.end()) {
+            auto prev = found->second.lock();
+            if (prev && prev->getParent()) {
+                return;
+            }
         }
+        map[id] = node;
     }
     auto container = std::dynamic_pointer_cast<gui::Container>(node);
     if (container) {