Different result of console log in same function

Question

I am trying to create a sudoku validator. For which I have written a program of return is sudoku is valid or not.

Issue: I am getting different result in console.log of same variable in different location of function

function validSolution(board) {
    //TODO
    let checklist = {
        column: false,
        row: false,
        grid: false,
    };

    function checkRepeat(arr) {
        return arr.every((el) => arr.indexOf(el) === arr.lastIndexOf(el));
    }

    function checkCount(arr) {
        return arr.sort().every((el, i) => el === i + 1 && el < 10);
    }

    function checkBoard(brd) {
        console.log(brd);
        //row
        checklist.row = brd
            .map((el) => {
                let ifRowRepeat = checkRepeat(el);
                let ifRowCount = checkCount(el);
                let resultRow =
                    ifRowRepeat === true && ifRowCount === true ? true : false;
                return resultRow;
            })
            .every((res) => res === true);

        console.log(brd);

        //Column
        let newBoard = [];
        for (let i = 0; i < 9; i++) {
            let newRow = [];
            brd.forEach((item) => {
                newRow.push(item[i]);
            });
            newBoard.push(newRow);
        }
        checklist.column = newBoard
            .map((el) => {
                let ifColRepeat = checkRepeat(el);
                let ifColCount = checkCount(el);
                let resultCol =
                    ifColRepeat === true && ifColCount === true ? true : false;
                return resultCol;
            })
            .every((res) => res === true);

        //Grid
        let gridBoard = [];
        for (let o = 0; o < 9; o = o + 3) {
            for (let n = 0; n < 9; n = n + 3) {
                let newLine = [];
                for (let l = n; l < n + 3; l++) {
                    let line = brd[l];
                    for (let m = o; m < o + 3; m++) {
                        newLine.push(line[m]);
                    }
                }
                gridBoard.push(newLine);
            }
        }
        checklist.grid = brd
            .map((el) => {
                let ifGridRepeat = checkRepeat(el);
                let ifGridCount = checkCount(el);
                let resultGrid =
                    ifGridRepeat === true && ifGridCount === true ? true : false;
                return resultGrid;
            })
            .every((res) => res === true);
    }

    checkBoard(board);
    console.log(checklist);
    return checklist.column && checklist.row && checklist.grid;
}
validSolution([
    [5, 3, 4, 6, 7, 8, 9, 1, 2],
    [6, 7, 2, 1, 9, 5, 3, 4, 8],
    [1, 9, 8, 3, 4, 2, 5, 6, 7],
    [8, 5, 9, 7, 6, 1, 4, 2, 3],
    [4, 2, 6, 8, 5, 3, 7, 9, 1],
    [7, 1, 3, 9, 2, 4, 8, 5, 6],
    [9, 6, 1, 5, 3, 7, 2, 8, 4],
    [2, 8, 7, 4, 1, 9, 6, 3, 5],
    [3, 4, 5, 2, 8, 6, 1, 7, 9],
]);

I am getting: First One is Correct:

        [ [ 5, 3, 4, 6, 7, 8, 9, 1, 2 ],
          [ 6, 7, 2, 1, 9, 5, 3, 4, 8 ],
          [ 1, 9, 8, 3, 4, 2, 5, 6, 7 ],
          [ 8, 5, 9, 7, 6, 1, 4, 2, 3 ],
          [ 4, 2, 6, 8, 5, 3, 7, 9, 1 ],
          [ 7, 1, 3, 9, 2, 4, 8, 5, 6 ],
          [ 9, 6, 1, 5, 3, 7, 2, 8, 4 ],
          [ 2, 8, 7, 4, 1, 9, 6, 3, 5 ],
          [ 3, 4, 5, 2, 8, 6, 1, 7, 9 ] ]

Second one is incorrect:

         [ [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ],
           [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ] ]

why?

           { column: false, row: true, grid: true }

How come if I am not manipulating the array but printing after a map function. It is giving wrong array