Just got my fs one pack today, installed it, registered and updated with the latest patch. One problem that I am having is this constant beeping noise in place of the engine noise. Sometimes for example I can start the flight with the Ultimate, once it is loaded the beeping starts, then I can start the engine and will hear that noise as well as the beeping. Once I take off and get a small distance between myself and the model there is no more engine noise, even when doing low and close passes, landing etc but this constant and annoying beeping noise continues.

Does anyone know how I can fix this one? I already have a headache from listening to it.