I am not sure what to provide for debugging info here.
Any movie I play in KODI 17 that is in 23.976fps stutters. Go back to KODI 16, same movie works fine. Options like ‘sync playback to display’ appear to have no affect on this. The only way to fix it is to put KODI 17 into “Windowed Fullscreen” mode which I think has the effect of enabling vsync (or forcing the display to 1080@60p). Yes my display supports 23.976 and 24. Simply reinstall KODI 16 and everything works again.
I have only been using KODI 17 since beta 6 and both beta 6 and beta 7 have this problem.