diff --git a/packages/ui-default/components/autocomplete/components/AutoComplete.tsx b/packages/ui-default/components/autocomplete/components/AutoComplete.tsx
index d1696ccd4..f67a4f872 100644
--- a/packages/ui-default/components/autocomplete/components/AutoComplete.tsx
+++ b/packages/ui-default/components/autocomplete/components/AutoComplete.tsx
@@ -128,9 +128,12 @@ const AutoComplete = forwardRef(function Impl<T>(props: AutoCompleteProps<T>, re
     setCurrentItem((!freeSolo && queryCache[query].length > 0) ? 0 : null);
   };
 
+  useEffect(() => {
+    setSelectedKeys(props.selectedKeys || []);
+  }, [JSON.stringify(props.selectedKeys)]);
   const dispatchChange = () => {
     if (!multi) onChange(inputRef.current?.value);
-    else onChange([...selectedKeys, inputRef.current?.value].filter((v) => v?.trim().length > 0).join(','));
+    else onChange(selectedKeys.filter((v) => v?.trim().length > 0).join(','));
   };
 
   let first = !multi;
diff --git a/packages/ui-default/components/problemconfig/ProblemConfigForm.tsx b/packages/ui-default/components/problemconfig/ProblemConfigForm.tsx
index d2d584ef9..e606ceed5 100644
--- a/packages/ui-default/components/problemconfig/ProblemConfigForm.tsx
+++ b/packages/ui-default/components/problemconfig/ProblemConfigForm.tsx
@@ -1,6 +1,7 @@
 import {
   Card, InputGroup, Tag,
 } from '@blueprintjs/core';
+import { isEqual } from 'lodash';
 import React from 'react';
 import { useDispatch, useSelector } from 'react-redux';
 import { i18n } from 'vj/utils';
@@ -35,8 +36,8 @@ function FileIOConfig() {
 
 function ExtraFilesConfig() {
   const Files = useSelector((state: RootState) => state.testdata);
-  const userExtraFiles = useSelector((state: RootState) => state.config.user_extra_files) || [];
-  const judgeExtraFiles = useSelector((state: RootState) => state.config.judge_extra_files) || [];
+  const userExtraFiles = useSelector((state: RootState) => state.config.user_extra_files || [], isEqual);
+  const judgeExtraFiles = useSelector((state: RootState) => state.config.judge_extra_files || [], isEqual);
   const dispatch = useDispatch();
   const userRef = React.useRef<any>();
   const judgeRef = React.useRef<any>();