UP SD70M Dynamic Brake Sounds Missing

I believe the dynamic brake sounds are missing from this engine.
Is there a fix for this?
Also, it seems the dynamic brake sounds are missing from the rear engines on the consist in the attachment. The coal cars in this scenario are the
Kuju V5 and Golden Age of Railroading BN and NP models.
I recall many moons ago where throttle changes didn't affect helper locomotives. I think this was back in the RS days, i.e. the dinosaur age.
However, just asking because the Kuju cars are involved here.
Thanks,
Rob

Is there a fix for this?
Also, it seems the dynamic brake sounds are missing from the rear engines on the consist in the attachment. The coal cars in this scenario are the
Kuju V5 and Golden Age of Railroading BN and NP models.
I recall many moons ago where throttle changes didn't affect helper locomotives. I think this was back in the RS days, i.e. the dinosaur age.

Thanks,
Rob
