Audio does not work in first peron example map.

EU version: 4.19.2

Hello guys,

I was trying to make a vr game and tried to add some audio files, but they did not seem to work.
Thirst i thought i had imported bad audio files.
So i tried starting up the first person example map and tried clicking the play buttons in the content/StarterContent/Audio folder folder.

No sound whatsoever.

I am watching a movie in between so i know the audio works.

Someone maybe has an idea what could be going wrong?

Thanks very much in advance.