This is an interesting bug. In game review, it says "You exposed an attack on a pawn while also checking your opponent's king", accompannied by an arrow showing the discovered attack on the pawn, as well as the check on the king... coming from the pawn that I moved rather than the bishop that was actually checking the king. (see screenshot below.) I assume that all it knows is "You exposed an attack on a pawn while also checking your opponent's king", and so always draws the arrow from the piece that moves because it forgot that it could be a double discovery?
A similar bug also happened below, but I'm not entirely sure what caused this one. Rxd8 is an illegal move as it leaves your king in check.
This is an interesting bug. In game review, it says "You exposed an attack on a pawn while also checking your opponent's king", accompannied by an arrow showing the discovered attack on the pawn, as well as the check on the king... coming from the pawn that I moved rather than the bishop that was actually checking the king. (see screenshot below.) I assume that all it knows is "You exposed an attack on a pawn while also checking your opponent's king", and so always draws the arrow from the piece that moves because it forgot that it could be a double discovery?