For people who are having flashing issues, I'll try to recreate a bit.
For those asking for addons, I'll be setting up an addon repo in the near future. However, I completely agree with kszaq. Most addons seem to build, with tvheadend42 being the only exception.
For LE9.x - Kodi Leia - I would advise to start from a pretty clean slate.
So Nuke lateframes, channel skip, fractional frame rates - all of them. I have found they are not needed at all for smooth video playback.
TvHeadend TV channel switching is now the best I've ever seen it with the very latest pvr.hts & Leia master with the above patches removed:
LibreELEC-S912.arm-9.0-9.0.0.Nougat-3.14.v8.tar
pvr.hts-999.4.0.17.2.zip
Thank you, I'll remove the channel skip and lateframes patches. I need the fractional frame rate patch, otherwise there are the regular interval frame skips. After flashing the initial build, I tried watching a whole 23.976fps movie, but was getting the standard regular interval skips due to kernel not having fractional policy set. I stopped playback, manually set the sysfs interface, then resumed playback and didn't get any skips throughout the rest of the movie.
I'm noticing frame skips on 23.976p content when played back at 24hz - using testing3. Thanks so much for your efforts on this.
How long did the file play? I noticed an issue with the fractional frame rate patch so it may take around a minute for it to get set (only happened once in testing and couldn't recreate again). If longer, I'll need more info and logs.