I have no idea why my editor doesn't dispatch checkbox when I enter shortcut

[deli-ght]

    nodes: [
      LinkNode,
      AutoLinkNode,
      ListNode,
      ListItemNode,
      TableNode,
      TableCellNode,
      TableRowNode,
      HorizontalRuleNode,
      CodeNode,
      HeadingNode,
      QuoteNode,
    ],

...
    <LexicalComposer initialConfig={initialConfig}>
      <RichTextPlugin
        contentEditable={
          <ContentEditable className="focus:outline-none h-full" />
        }
        ErrorBoundary={LexicalErrorBoundary}
      />
      <OnChangePlugin onChange={onChange} />
      <ComponentPickerMenuPlugin />
      <HistoryPlugin />
      <TabIndentationPlugin />
      <MarkdownShortcutPlugin />
      <AutoLinkPlugin matchers={MATCHERS} />
      <ListPlugin />
      <CheckListPlugin />
      <ClearEditorPlugin />
      {/* Custom plugins */}
    </LexicalComposer>

I set my plugin like this but when I enter [] on my editor, it doesn't change to checkbox list.
In the lexical playground, I found it works. I just follow the code of playground but it was hard to find out the reason...