If you have time for spaceships then you have time to fix the game.
Wow.. yes that statement right there will encourage them to just drop everything just to fix your one problem. Good job!
This is the first I've heard of this issue. I have no problems of this sort. All of my squadmates have no problems of this sort. I don't recall this being mentioned on country channel or on 200... it would seem to me that the problem is either with YOUR computer, YOUR sounds, or YOUR drivers otherwise it would be a lot more wide spread.
If you use custom sounds, get rid of them and see what happens. Still happening? Check for sound driver updates. Still happening? You might even have a hardware issue with your sound card/sound chip/ram/whatever.
And even if this were a legitimate bug on Hitech's end, I personally feel that they have other, bigger problems to address... but hey if they happen to fix your issue on a subsequent update then good for you!