almost no sound over audio headset after trying VR headset

[Natives-Soul_Finger]

I have another open problem here about an Odyssey VR headset that has the right eye image as if the IPD was like 30cm. Now I find that when I try to switch back to my sound blaster audio headset and monitor it is at perhaps1% volume for IL2 but full volume for everything else. Is there a setting the Odyssey or Mixed Reality install could have changed to make it so the sound blaster is almost silent while the Odyssey is full volume on IL2. Again, the headset works fine for everything else including Steam games, just not IL2.IL2 on the other hand can be heard on the VR headset and my speakers. Any ideas?