Context only shown once when Context is renderered >= 2 times

[mqliutie]

const Context = React.createContext();

const arr = Array.from({length:3})

const Test =()=>{

     return <>
         arr.map((_,index)=>{
               return <T1 key={index}>
         })
     </>
}

const T1 = ()=>{
    const [num, setNum] = useState(1);
    return <Context.Provider value={{num}}>
            <OtherComponents />
    </Context.Provider>
}

The dev tool only show the context once. I can not get other context values