'Error Loading Mission'. What is this,please?

[magomar]

I'm having the same problem
Only thing I have changed just before experiencing this problem is the instalation of a new Headset with 7.1 surround sound (Logitech G930).
Actually, in one attempt that I have been able to load a game without getting the error, but the headset was not working.
That fact make me suspicious of some relation between that error (related with sound files) and the referred headset.
Some ideas on this?

[magomar]

I can confirm this error is related to the Logitech G930 headset, since it only happens with the headset connected, if I disconnect the headset the error is gone.
However, I have no idea of the precise nature of this error, or how to fix it.

[Wondergoat]

I'm finding the same problem. It prohibits me from flying. Are there any known fixes not mentioned? It sounds really rare.