Current version of LE: 10.0
Build: LibreELEC-RK3399.arm-9.95.1-rockpro64
Tvheadend server ver: 4.2.8-36 (9.80.11.125 Team Libreelec)
Tvheadend client ver (hosted on same server): 8.3.0.1
When playing an HD OTA tv signal, the video is slower than the audio. SD signals do not have this problem. Sometimes the video will stop and start as if to catch up and then will go out of sync again. When I was using LE 9.x I had a similar problem but once the video stopped and started after a few seconds at the very beginning the problem went away for the duration of the program until I switched to a different channel. It seemed to correct itself automatically. With LE 10 it does not correct itself. Recorded HD programs have the same issue.
There is something going on with how the rockpro is processing the signal to send through HDMI because when I watch the same HD channel from a separate Android tv in another room with the kodi app and the TVHE client installed I do not have this problem, even though the same TVHE server on the rockpro is providing the signal over my network.