Stockfish blunders away a piece in a winning game

White, Stockfish, to move. It plays bg1 from bb6,losing the bishop and the win.Also strange: the same engine does not make this weird move in the Tarrasch program.Many people seen Stockfish often blunder away the advantage in these endgame setups. by then a new version of stockfish came and this didn't become a big news

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@thenextlevelpro