Can't hear game chat ?

Hi everyone

I’m new to forza which I must say It is a fantastic game , I’m an xbox one player and since I had the July update I can no longer hear game chat , I have the xbox one adaptor to go with my tritton ax pro headset and I have updated it to make it work , I can hear and speak to people in a party and can hear game chat in my other games .

I was just wondering if anyone else was having the same problem not hearing game chat in the forza 5 lobbies that have the xbox one headset adaptor or is this just me

Thanks

Please see: http://forums.forza.net/turn10_postst17276_Game-chat.aspx