diff --git a/Source/Modules/InputHandler_HandleInput.swift b/Source/Modules/InputHandler_HandleInput.swift
index 1aea2887..18494529 100644
--- a/Source/Modules/InputHandler_HandleInput.swift
+++ b/Source/Modules/InputHandler_HandleInput.swift
@@ -277,14 +277,6 @@ extension InputHandler {
       return true
     }
 
-    // 將 Apple 動態鍵盤佈局的 RAW 輸出轉為 ABC 輸出。僅對磁帶模式啟用此步驟。
-    if IMKHelper.isDynamicBasicKeyboardLayoutEnabled, let event = input as? NSEvent,
-      prefs.cassetteEnabled, let txtABC = event.inAppleABCStaticForm.characters, !txtABC.isEmpty
-    {
-      delegate.switchState(IMEState.ofCommitting(textToCommit: txtABC))
-      return true
-    }
-
     return false
   }
 }
diff --git a/Source/Modules/SessionCtl_HandleEvent.swift b/Source/Modules/SessionCtl_HandleEvent.swift
index 379151a9..c0c95793 100644
--- a/Source/Modules/SessionCtl_HandleEvent.swift
+++ b/Source/Modules/SessionCtl_HandleEvent.swift
@@ -136,10 +136,15 @@ extension SessionCtl {
     if shouldUseShiftToggleHandle { rencentKeyHandledByInputHandlerEtc = result }
     if !result {
       // 除非是 .ofMarking 狀態，否則讓某些不用去抓的按鍵起到「取消工具提示」的作用。
-      if [.ofEmpty].contains(state.type) {
-        tooltipInstance.hide()
+      if [.ofEmpty].contains(state.type) { tooltipInstance.hide() }
+
+      // 將 Apple 動態鍵盤佈局的 RAW 輸出轉為 ABC 輸出，除非轉換結果與轉換前的內容一致。
+      if IMKHelper.isDynamicBasicKeyboardLayoutEnabled, event.text != eventToDeal.text {
+        switchState(IMEState.ofCommitting(textToCommit: eventToDeal.text))
+        return true
       }
     }
+
     return result
   }
 }