Python Chess库调用set_fen()和push()后legal_moves生成错误走法的问题求助

大家好，我正在用Python Chess库写一个小型的国际象棋GUI。昨天我多次运行代码都没问题，但安装了一些其他Python库后，今天发现了一个奇怪的问题：board.legal_moves生成了错误的走法。我尝试重新安装了Python 3.13.1和最新的Python Chess库，但问题依然存在。

我的代码非常简短：

import chess

board = chess.Board()
starting_position=board.fen()

for move in board.legal_moves:
    print(starting_position)
    board.set_fen(starting_position)
    print(move)
    board.push(move)
    print(f' board pushed move {board.fen()}')
    print()

错误结果从第五步h7h6开始一直到结束，而正确的应该是h2h3。我这里只展示前六个示例：

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
g1h3
 board pushed move rnbqkbnr/pppppppp/8/8/8/7N/PPPPPPPP/RNBQKB1R b KQkq - 1 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
g1f3
 board pushed move rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq - 1 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
b1c3
 board pushed move rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq - 1 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
b1a3
 board pushed move rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq - 1 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
h7h6
 board pushed move rnbqkbnr/ppppppp1/7P/8/8/8/PPPPPPPP/RNBQKBNR b KQkq - 0 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
g7g6
 board pushed move rnbqkbnr/pppppp1p/6P1/8/8/8/PPPPPPPP/RNBQKBNR b KQkq - 0 1

如果我把board.push(move)这部分注释掉，一切就恢复正常了：

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
g1h3
 board pushed move rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
g1f3
 board pushed move rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
b1c3
 board pushed move rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
b1a3
 board pushed move rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
h2h3
 board pushed move rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
g2g3
 board pushed move rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

另外，如果我注释掉board.set_fen(starting_position)，并在循环末尾加上board.pop()，也不会出现错误。

有没有人能给我一些解决建议？非常感谢！

备注：内容来源于stack exchange，提问作者user28471654