Missile lock sfx missing?

Since yesterday, for some reason, the IR missile seeker and lock sound effects in ground battles have just disappeared for me. There is zero sound whenever I activate the IR seeker and lock onto a target. (For context, I am using spike II missiles on the Vilkas in germany). Does anyone know why this is?

I just tested the vilkas and it was playing sound for me. Maybe try to do a file check and see it is fixes it