The one video it wont play

I have thrown hundreds of videos at the N2 running CE and it plays them all flawlessly… except for 2 similar videos. These two are DolbyVision demo videos from LG. Pasted below is the format detail (from MediaInfo) which is the same on both videos. Can someone shed some light on why it wont play these two?

ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@Main
HDR format : Dolby Vision, Version 1.0, dvhe.05.09, BL+RPU
Codec ID : dvhe
Codec ID/Info : High Efficiency Video Coding with Dolby Vision
Duration : 55 s 200 ms
Bit rate : 34.3 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 60.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.069
Stream size : 226 MiB (98%)
Encoded date : UTC 2017-03-30 17:23:39
Tagged date : UTC 2017-03-30 17:23:39
Codec configuration box : hvcC+dvcC

I think those files don’t have hdr10 fallback but only DV. And that isn’t supported.