As mentioned above there is an audio sync problem for liveTV with AC3 sound and also picture freezes and big frameskips seen for this type of channels.
Try this version, slightly tweaked for the the correct Fractional flag in platform_init
LibreELEC-S912.arm-9.0-9.0.0.Nougat-3.14.v10.iptv.simple.tar
I have likely forgotten this as well, put it in /storage/.config/autostart.sh
echo 4 > /sys/module/amvdec_h264/parameters/dec_control
Traced my H264 live TV problems over to a failing SD card on my TvHeadend server. All sorts of AML SD card errors in the dmesg - kernel log.
wrxtasy, I'm curious about the S912 Nougat build you posted #383. Do you have a thread running somewhere that I can read through? I currently have a 2G8G Beeling GT1 running Kszaq's S912 build.
I don't intend to provide a support thread. This releases are pretty much "as is" to test out any of @JG's Nougat Kernel merges.
One thing I have noticed is Kodi Leia has fixed the slight video stutter that AML Krypton had when pulling up an On Screen Display.
It appears a few other skipping/navigating around video bugs got squashed as well.