Unable to Direct Play some 4K HDR files to xbox one s
My PMS (MacBook Pro) is able to direct play some 4K HDR files such as http://hdrsamples.com/life-of-pi-4k-uhd-hdr-sample-footage/ and http://hdrsamples.com/exodus-4k-uhd-hdr-sample-footage/ but not others eg http://4kmedia.org/lg-chess-hdr-demo/. They are all 4K MP4, HEVC, 10 bit HDR, AAC. Only difference I see is that chess is 60P whereas the two working are 24P and different version of AAC.
Some others do play but are being transcoded to H264 eg http://4kmedia.org/lg-cymatic-jazz-hdr-hlg-uhd-4k-demo/
Any ideas why this is happening? I have attached PMS log for when Life of Pi and Chess were played.