Help Me Understand How These Missed

Starting at 3:12, my missiles launched at Ben_0Q.
The friendly kill i understand, he blew up and his signature became hotter than a jet engine and my swedish aim9ms apparently dont have the same gate width IRCCM to not fall for that like newer missiles.
But specifically the second RB74 and first RB99


He does not flare or chaff at all, the entire time. I am actually stunned, and 100% lost and want to know what i am missing, because i am an experienced player i truly felt as though the first rb99 and second rb74 fired at Ben should have been kills.
https://warthunder.com/en/tournament/replay/426504881153125383