Where did you import it from? PGNs were most likely different. Also, the "unknownFinish" is because the game is annotated as 0-1 in the PGN, where the last move is a check, and Termination is "Unknown". Probably a faulty PGN(s).
It is possible for Stockfish to generate different evaluations for the same position(s).
People often think there is some magic to engine evaluations, but "engines are human too" in the sense that their evaluations are imperfect.
