Apparently Kodi doesn't like TS files. Samsung Wonderland Two HDR UHD 4K Demo.ts is exactly what I downloaded. Played it directly on my TV using VLC and it looked pretty good (the TV says HDR is enabled).
Kodi starts the video, but doesn't play it (it's stuck on the first frame). As of now it's frozen up. Kodi doesn't react to remote control inputs nor SSH. Debug is enable any none of the numbers are changing. The frame doesn't look the same as on the TV though. Seems "washed out" a bit.