I've had the same issue since Friday.
Xbox One S, Logitech G920 wheel.
FH4 works perfectly , FH5 has major sound issues , slow loading & crashes / profile losses.
It was all fine when I was playing on Thu night and all was perfectly normal on shutdown (about 02:14 on Fri) then Friday afternoon the whole game was unable to start and claiming loss of profile. All other parts of the console were working fine and all other games had no issue – just FH5.
There was a console update Fri 21-10-22 @ 02:29 (BST) and it seems to have really messed things up for FH5.
If I unplug the wheel it starts fine with no issues. As soon as I plug the wheel in the sound / playability issues are back, unplug it and sound immediately returns to normal. Need this fixing As soon as possible - struggling badly to play the game using a controller.
Aaorta