I also have a problem with switching audio devices of Windows 10 Pro. If I start Ixeg 737 with my bluetooth headset, and then switch to the speakers, the sound disappears completely and it is impossible to return it. But I do not consider this a critical issue, because this is the best plane in X Plane that I have flown. It is so much fun to fly that the problem of switching audio devices seems very minor. Yes, I do not have such problems with other X-Plane planes, although I have almost all airliners and all of them allow you to switch sound devices without any problems. But ixeg ... I just adapted to this peculiarity of him and continue enjoy flying on this amazing airplane. Even with known problems he is the best of the best in X-Plane and he gives a very strong dive, I really learn with him as a pilot, not as a driver. All other purchased airliners are gathering dust in the hangar. Although, I have such a problem with switching sound devices of Windows only with ixeg 737