Ok i found something strange. While playing with headphone I can hear louder engine sound Is still not on "normal" level but is hearable. Anybody know what is wrong?

Tak jak w temacie. Mam Stadion, niedawno kupiłem Canyon i teraz chciałbym kupić Valley. Niestety polacy są uważani za bardzo bogaty kraj i wszędzie jest drożyzna. 20 Euro na steamie. Na uplay 70zł (aktualnie kiedy to pisze jest przecena i jest za 42zł jednak i tak wolałbym taniej). Zastanawiam się, ...

I'm apologize for my english. I have strange problem with engine sound in Stadium and Canyon. In stadion every custom car that have own engine sound is not making any sound during game. I can't hearing his engine. But if i delete engine folder that is in .zip i can hear it normally. But I can't do t...