Not surprising and this is a common behavior for most gamblers on whenever they do saw some patterns then later on they do make out presumptions that neither do hit or not and when it happens then for sure

they would really be sticking out into their minds that it does work and surely be used on future games to come but once reality do slap you in the face then you would surely tell this thing to yourself that

no guaranteed strategy works in gambling unless if you are dealing with strategic based type of games like poker but speaking with luck based then its impossible, everything is random.