Sound issues

[Quantum_Peep]

Brief description: No surround sound, missing sounds
Detailed description, conditions: With the newest patch I am not getting surround sound anymore. Furthermore I am missing sounds, like flaps and landing gear.
Additional assets (videos, screenshots, logs):
Your PC config data (OS, drivers, specific software): Win10, I7 8700k, GTX1080 ti, SoundBlaster Z

[-DED-Rapidus]

@Quantum_Peep, I need examples, videos, tracks, and specifics about when sounds disappear to reproduce the problem.