My RPi3 occassionally freezes when idle and screen is off.
Power and SD card LED are just permanently on then instead of the SD card LED flashing every few seconds.
I can not reach my Pi via network and screen is also blank when I turn it on.
Only turning the power off and on helps then to reset the Pi.
My Kodi log just goes back to around 2am this morning but it still worked later at 9am so it doesn't make sense to post it here.