Communications Support Forums

I have a site that I'm trying to implement enhanced privacy on. I have all of the radios reprogrammed and flashed to the latest firmware. I'm running into a weird issue on the one channel with enhanced privacy enabled that some radios will pick up the transmission of other users and some will not. All have the same key. Put 5 guys in a room and 3 of them might hear the person transmitting and the last 2 won't. All radios will see ID information that, the person is broadcasting. We're tried mixing different shoulder mics, different locations, all kinds of things and can't get any kind of consistency out of the issue. I know there are a lot of variables here but I was wondering if anyone had run into a similar problem before and might be able to help point me in the right direction.