JJRAYX9

I'm sorry man, I've got nothing else.

On 4/25/2021 at 9:46 AM, Garrett Hanson said:

are you sure you exported/saved the .wav files correctly?
cuz i've had this same problem before & it fixes it

It sure looks as though he did.

On 4/25/2021 at 9:22 AM, mushyzachman said:

didn't work

The only other thing that might work is renaming the sounscript file to "MonsterTruckEngine2" Try it. It may or may not work

This has happened to me as well on multiple occasions. I do not know how to fix it for certain, but it looks like you've done everything correctly. Rebuild your cache under diagnostics on the Rigs of Rods settings screen