diff --git a/mindinsight/lineagemgr/common/validator/validate.py b/mindinsight/lineagemgr/common/validator/validate.py
index 44209b22b81200890d8155105040247533594fc5..8883a2ce29eeb7225c21f9d72e04d34bb5827101 100644
--- a/mindinsight/lineagemgr/common/validator/validate.py
+++ b/mindinsight/lineagemgr/common/validator/validate.py
@@ -412,7 +412,7 @@ def validate_user_defined_info(user_defined_info):
     if not isinstance(user_defined_info, dict):
         log.error("Invalid user defined info. It should be a dict.")
         raise LineageParamTypeError("Invalid user defined info. It should be dict.")
-    for key, value in user_defined_info:
+    for key, value in user_defined_info.items():
         if not isinstance(key, str):
             error_msg = "Dict key type {} is not supported in user defined info." \
                         "Only str is permitted now.".format(type(key))
diff --git a/mindinsight/ui/src/views/train-manage/image.vue b/mindinsight/ui/src/views/train-manage/image.vue
index 402955ce11ab02a9d7b0bf5e66e49143215373d7..7ee274448dec0c8010905bfa7a4fa6b3b230f21b 100644
--- a/mindinsight/ui/src/views/train-manage/image.vue
+++ b/mindinsight/ui/src/views/train-manage/image.vue
@@ -498,8 +498,8 @@ export default {
       for (let i = oldTagListLength - 1; i >= 0; i--) {
         if (!newTagDictionaries[this.tagOperateList[i].label]) {
           dataRemoveFlag = true;
-          this.tagOperateList.splice(i, 1);
           delete this.oriDataDictionaries[this.tagOperateList[i].label];
+          this.tagOperateList.splice(i, 1);
         }
       }
       // Delete the old data from the image list and update the dictionary