I'm trying to play a .m3u8 file in an HLS player, with its parts stored in the same folder like this:

I changed the content of my .m3u8 file to look like this:
#EXTM3U #EXT-X-STREAM-INF:BANDWIDTH=175218,AVERAGE-BANDWIDTH=150954,CODECS="hvc1.1.6.L63.90",RESOLUTION=640x360,FRAME-RATE=30.000 stream_1.m3u8?alt=media #EXT-X-STREAM-INF:BANDWIDTH=1455037,AVERAGE-BANDWIDTH=1213625,CODECS="avc1.64001f",RESOLUTION=1280x720,FRAME-RATE=30.000 stream_2.m3u8?alt=media #EXT-X-STREAM-INF:BANDWIDTH=3260161,AVERAGE-BANDWIDTH=2652277,CODECS="avc1.640028",RESOLUTION=1920x1080,FRAME-RATE=30.000 stream_0.m3u8?alt=media
I added the ?alt=media as mentioned here, and in this case the files are in the root folder. I also changed the permissions as indicated there, but I can't get it to work. I also tried the same for all other .m3u8 files. What changes do I need to make?
Any direction or help will be appreciated. Thank you in advance!