Xbox Series X Class 350 Sounds

Now I have seen this issue crop up in another thread but I'm making one dedicated to it. The 350 and reported 380 sounds are broken. When applying power in the FRONT (drivers) cab external view, the motor sounds can heard, but switching to the REAR cab, the motors don't have any sound. However, if the Power is applied while in the REAR cab external view, the sounds can be heard in the rear. But, again, switching to the FRONT cab external camera view the motor sounds are then inaudible. In summary whichever external view you are in (FRONT or REAR) the motor sounds CANNOT be heard in the opposite view.