Aim 9m tracking bug

I shot an AIM9M at an F-18C from a side aspect. It was supposed to be a kill because he did not use any flares and was flying straight. However, my missile somehow tracked him for a few seconds, then it switched to search mode and flew to god knows where. This must be a bug needs to be fixed.

as you can see in the video, it did not want to turn at all, although it was tracking the f18.