Can't cross fade out and fade in two audio components on the player character

Hi, I have two audio components attached to my player character and I am using them to play my background music. I want to use the audio components FadeIn and FadeOut functions to make nice transitions for the music but only the FadeIn actully fades. The FadeOut just cuts of the sound instantly. Anyone that can clearify what I am doing wrong when trying to do this? Thank you.