I think it's because it's my mistake actually, I should play it again and check it, I think I might know now what I may have done wrong.
The real mistake I also made is I usually skip rating games if I suspect I might have overlooked something. Instead I accidentally assigned a rating to this specific game. Since the rating cannot be removed, right now I want to play the game again as soon as possible and correct my rating as soon as I can.
I think you are right as well, I may consider to check more carefully next time on some specific kinds of games where for some reason I may be more likely to overlook and think something else is going on than actually is, thank you for pointing it out and I may check on improving about this.