fix: Apply scale and alpha immediately via dedicated functions

Modules/Arrow/QuestieArrow.lua

@@ -770,7 +770,8 @@ end
 
 function QuestieArrow:ResetPosition()
     Questie.db.profile.arrowPosition = nil
-    -- Reset to default center position
+    -- Ensure frame exists, then reset to default center position
+    EnsureArrowFrame()
     if arrowFrame then
         arrowFrame:ClearAllPoints()
         arrowFrame:SetPoint("CENTER", UIParent, "CENTER", 0, -100)
@@ -778,6 +779,20 @@ function QuestieArrow:ResetPosition()
     end
 end
 
+function QuestieArrow:ApplyScale()
+    EnsureArrowFrame()
+    if arrowFrame then
+        arrowFrame:SetScale(_GetArrowScale())
+    end
+end
+
+function QuestieArrow:ApplyAlpha()
+    EnsureArrowFrame()
+    if arrowFrame then
+        arrowFrame:SetAlpha(_GetArrowAlpha())
+    end
+end
+
 function QuestieArrow:Initialize()
     EnsureArrowFrame()
 

Modules/Options/ArrowTab/QuestieOptionsArrow.lua

@@ -56,8 +56,8 @@ function QuestieOptions.tabs.arrow:Initialize()
                 get = function() return Questie.db.profile.arrowScale or 1 end,
                 set = function(_, value)
                     Questie.db.profile.arrowScale = value
-                    if QuestieArrow and QuestieArrow.Refresh then
-                        QuestieArrow:Refresh()
+                    if QuestieArrow and QuestieArrow.ApplyScale then
+                        QuestieArrow:ApplyScale()
                     end
                 end,
             },
@@ -73,8 +73,8 @@ function QuestieOptions.tabs.arrow:Initialize()
                 get = function() return Questie.db.profile.arrowAlpha or 1.0 end,
                 set = function(_, value)
                     Questie.db.profile.arrowAlpha = value
-                    if QuestieArrow and QuestieArrow.Refresh then
-                        QuestieArrow:Refresh()
+                    if QuestieArrow and QuestieArrow.ApplyAlpha then
+                        QuestieArrow:ApplyAlpha()
                     end
                 end,
             },