The only issue I noticed is, when I start an HDR movie like Samsung Wonderland Two HDR UHD 4K Demo:
The movie starts and after a couple of seconds the screen goes blank (and the audio stops) for about two or three seconds.
Is it a .ts file? For some reason it takes a while for Kodi to switch to a correct video mode when starting a playback of .ts files. You can remux it to mkv and it will start properly.