This is not the first loss by book from this Opening Book PMUltraCorr2019

[pgn]
[Event "Battle of the Public Books I"]
[Site "Battle of the Public Books"]
[Date "2020.04.21"]
[Round "1"]
[White "Stockfish (bin-cassiopeia)"]
[Black "Stockfish (ctg-PMUltraCorr2019)"]
[Result "1-0"]
[BlackElo "3400"]
[ECO "C41"]
[Opening "Philidor"]
[Time "17:59:32"]
[WhiteElo "3400"]
[TimeControl "40/120:40/120:40/120"]
[Termination "adjudication"]
[PlyCount "24"]
[WhiteType "program"]
[BlackType "program"]

1. e4 {0.00/1} e5 {+0.05/1 0} 2. Nf3 {0.00/1} d6 {+0.05/1 0} 3. d4 {0.00/1}
exd4 {+0.05/1 0} 4. Nxd4 {0.00/1} Qe7 {+0.05/1 0} 5. Nc3 {+1.59/21 5} f5
{+0.05/1 0} 6. Bb5+ {+4.42/17 1} c6 {+0.05/1 0} 7. O-O {+4.64/19 1} fxe4
{+0.05/1} 8. Nxe4 {+6.16/22 5} cxb5 {+0.05/1 0} 9. Re1 {+8.88/20 1} Kd8
{+0.05/1 0} 10. Bf4 {+9.55/21 1} d5 {-10.65/27 20} 11. Ng5 {+10.60/21 1}
Nf6 {-10.48/24 1} 12. Rxe7 {+12.28/22 1} Bxe7 {-10.87/24 3  Arena
Adjudication} 1-0
[/pgn]