WAF. sound files not working?? UE4

Hi Joey,

Don’t know if youre still going to read this but I have another related question to this issue.
I fixed the issue in this post by enabling the looping option in the sound cue settings.
Now Im putting a movie in my game and the sound that the movie is using is a media sound wave. When I turn on the override attenuation option I get exactly the same problem as I stated before. But now when I open the options of the media sound wave I dont see the option to enable looping (see picture).
Would you know how to solve this? (Im using unreal engine 4.14.1)

Thanks a lot!