[FREE] 10GB of sound files, from Sonniss.com

did anyone you have problems importing this sounds to UE4?
im having this message

Failed to import ‘[mypath] raffic, discrete car passes on narrow street, daytime, summer, ORTF stereo.wav’. Failed to create asset ‘/Game/Sound/traffic__discrete_car_passes_on_narrow_street__daytime__summer__ORTF_stereo’