I hear an echo when my friends are talking in Discord (Blackshark V2 Pro)

Hey guys, I have the BlackShark V2 Pro and I need your help. When I have the THX Audio on, I hear all my friend in Discord with an echo. If I turn THX off it is gone and I hear the person clear and without an echo. But I think that's not the way it should work, right? Here are my settings... In Windows: Razer BlackShark V2 Pro is set as communication device and THX Spatial Audio is set as default device. (I'm on Windows 11) In Discord: BlackShark V2 Pro is set as outgoing device. I think these are the right settings, or am i wrong? Anyone knows this problem, or have an idea what i do wrong? I'm thankful for any hints.