MediaConvert HLS manifest error

Hey there,

I'm despairing... I want to create a MediaConvert job with an HLS output group but without any video input, two audioselectors. My current manifest looks like this:

#EXTM3U
#EXT-X-VERSION:4
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="program_audio",LANGUAGE="eng",NAME="BEsAsDes",AUTOSELECT=YES,DEFAULT=YES,URI="indexB-Es-As-Des.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="program_audio",LANGUAGE="eng",NAME="ADGC",AUTOSELECT=YES,DEFAULT=YES,URI="indexA-D-G-C.m3u8"

It isn't working on any player I'm getting errors like manifest invalid.

Any help is much appreciated!