Bug in chess.com analysis (android app)

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Avatar of JockeQ
Does anyone else experience bugs in the chess.com analysis? To me it happens every now and then that it marks a move as a blunder but I can not see why. Usually happens when I have a big lead.
 
Like this game for example. I´m black and at move 33 I´m in a big lead -17.8. But after 34 (the blunder move) evaluation goes to 0.00. But then after move 35 its -M3 (mate in three moves). But even if I for move 35 play  my oponents recommended best move (Kn b2) it says I´m winning again (-15.1). How can the evaluation go from 0.0 to -15.1 when white plays the best move?   
 
EDIT: I tried it now in Lichess analysis board and it it  evaluate the position -17.1 after move 34. So it must be a bug right? But then I start to wonder how much you can trust chess.com analysis, I´m a beginner and probably don´t notice most of the times where the analysis is not correct, but still it happens every now again that I spot these kind of things.