diff --git a/apps/application/serializers/application.py b/apps/application/serializers/application.py
index 21d6d27c0..f8a3b0e25 100644
--- a/apps/application/serializers/application.py
+++ b/apps/application/serializers/application.py
@@ -913,23 +913,31 @@ class ApplicationOperateSerializer(serializers.Serializer):
             [ApplicationKnowledgeMapping(application_id=application_id, knowledge_id=knowledge_id) for knowledge_id in
              knowledge_id_list]) if len(knowledge_id_list) > 0 else None
 
-    def speech_to_text(self, instance, with_valid=True):
+    def speech_to_text(self, instance, debug=True, with_valid=True):
         if with_valid:
             self.is_valid(raise_exception=True)
             SpeechToTextRequest(data=instance).is_valid(raise_exception=True)
         application_id = self.data.get('application_id')
-        application = QuerySet(Application).filter(id=application_id).first()
+        if debug:
+            application = QuerySet(Application).filter(id=application_id).first()
+        else:
+            application = QuerySet(ApplicationVersion).filter(application_id=application_id).order_by(
+                '-create_time').first()
         if application.stt_model_enable:
             model = get_model_instance_by_model_workspace_id(application.stt_model_id, application.workspace_id)
             text = model.speech_to_text(instance.get('file'))
             return text
 
-    def text_to_speech(self, instance, with_valid=True):
+    def text_to_speech(self, instance, debug=True, with_valid=True):
         if with_valid:
             self.is_valid(raise_exception=True)
             TextToSpeechRequest(data=instance).is_valid(raise_exception=True)
         application_id = self.data.get('application_id')
-        application = QuerySet(Application).filter(id=application_id).first()
+        if debug:
+            application = QuerySet(Application).filter(id=application_id).first()
+        else:
+            application = QuerySet(ApplicationVersion).filter(application_id=application_id).order_by(
+                '-create_time').first()
         if application.tts_model_enable:
             model = get_model_instance_by_model_workspace_id(application.tts_model_id, application.workspace_id,
                                                              **application.tts_model_params_setting)
diff --git a/apps/chat/serializers/chat.py b/apps/chat/serializers/chat.py
index 846473134..0d199d30a 100644
--- a/apps/chat/serializers/chat.py
+++ b/apps/chat/serializers/chat.py
@@ -462,10 +462,10 @@ class TextToSpeechSerializers(serializers.Serializer):
     def text_to_speech(self, instance):
         self.is_valid(raise_exception=True)
         application_id = self.data.get('application_id')
-        application = QuerySet(Application).filter(id=application_id).first()
+        application = QuerySet(ApplicationVersion).filter(id=application_id).order_by('-create_time').first()
         return ApplicationOperateSerializer(
             data={'application_id': application_id,
-                  'user_id': application.user_id}).text_to_speech(instance)
+                  'user_id': application.user_id}).text_to_speech(instance, False)
 
 
 class SpeechToTextSerializers(serializers.Serializer):
@@ -477,4 +477,4 @@ class SpeechToTextSerializers(serializers.Serializer):
         application = QuerySet(Application).filter(id=application_id).first()
         return ApplicationOperateSerializer(
             data={'application_id': application_id,
-                  'user_id': application.user_id}).speech_to_text(instance)
+                  'user_id': application.user_id}).speech_to_text(instance, False)
diff --git a/apps/chat/serializers/chat_embed_serializers.py b/apps/chat/serializers/chat_embed_serializers.py
index 2c45e60f4..9c185f273 100644
--- a/apps/chat/serializers/chat_embed_serializers.py
+++ b/apps/chat/serializers/chat_embed_serializers.py
@@ -53,7 +53,9 @@ class ChatEmbedSerializer(serializers.Serializer):
             if application_setting is not None:
                 is_draggable = 'true' if application_setting.draggable else 'false'
                 if application_setting.float_icon is not None and len(application_setting.float_icon) > 0:
-                    float_icon = f"{self.data.get('protocol')}://{self.data.get('host')}{CONFIG.get_chat_path()}{application_setting.float_icon}"
+                    float_icon = application_setting.float_icon[1:] if application_setting.float_icon.startswith(
+                        '.') else application_setting.float_icon
+                    float_icon = f"{self.data.get('protocol')}://{self.data.get('host')}{CONFIG.get_chat_path()}{float_icon}"
                 show_guide = 'true' if application_setting.show_guide else 'false'
                 if application_setting.float_location is not None:
                     float_location = application_setting.float_location