So here is the thing. I'm running ICC with guild and everything is ok (well, save for some problems with addons but nvm that). We engage Marrowgar and I notice that sound is WAY off. I mean nothing can be heard and after 1-2 min or so, sound "reactivates" but with said 1-2 min delay so by the time we start clearing LDW trash, I can hear Marrowgar fight going on. I though it was because of some addon so I pretty much turned off every addon that isn't working or I have some issues with but the same thing happened during Gunship and DBS while during trash, sound was perfectly fine

So my question is whether anyone else is experiencing something like that and knows what might cause it?