diff --git a/lua/app/ui/dungeon_armor/dungeon_armor_main_ui.lua b/lua/app/ui/dungeon_armor/dungeon_armor_main_ui.lua
index 0092504f..793867f4 100644
--- a/lua/app/ui/dungeon_armor/dungeon_armor_main_ui.lua
+++ b/lua/app/ui/dungeon_armor/dungeon_armor_main_ui.lua
@@ -195,27 +195,33 @@ function DungeonArmorMainUI:refreshBG(chapterId, index)
     end
 
     local obj
-    if isUp then
-        local y1 = self.bg1:fastGetAnchoredPositionY()
-        local y2 = self.bg2:fastGetAnchoredPositionY()
-        if y1 == y2 then
-            obj = self.bg1
-        elseif y1 < y2 then
-            obj = self.bg1
+    local y1 = self.bg1:fastGetAnchoredPositionY()
+    local y2 = self.bg2:fastGetAnchoredPositionY()
+    if y1 == -1 then
+        obj = self.bg1
+    elseif y2 == -1 then
+        obj = self.bg2
+    end
+    if not obj then
+        if isUp then
+            if y1 == y2 then
+                obj = self.bg1
+            elseif y1 < y2 then
+                obj = self.bg1
+            else
+                obj = self.bg2
+            end
         else
-            obj = self.bg2
-        end
-    else
-        local y1 = self.bg1:fastGetAnchoredPositionY()
-        local y2 = self.bg2:fastGetAnchoredPositionY()
-        if y1 == y2 then
-            obj = self.bg2
-        elseif y1 < y2 then
-            obj = self.bg2
-        else
-            obj = self.bg1
+            if y1 == y2 then
+                obj = self.bg2
+            elseif y1 < y2 then
+                obj = self.bg2
+            else
+                obj = self.bg1
+            end
         end
     end
+
     if self.bgNames[obj] ~= bgName then
         obj:setTexture("assets/arts/textures/background/dungeon_armor/" .. bgName .. ".png")
         self.bgNames[obj] = bgName