First, let me give thanks to the devs and everyone involved for such an incredible open-source media center - it has changed the way we watch TV and opened our eyes to content we didn't even know existed. Thank you!
After upgrading to LE 8.0.1 the migration process hung on the MythTV addon, presumably since I didn't have the back-end fully set up yet. Is there a way to restart this wizard from the shell when logged in via SSH? e.g. kodi --migrate... Would it help the issue below?
After the update, there are a couple of interesting things that happen now. When starting a live stream, the UI will show that the stream started and is playing at the top of the screen and kodi.log will show that playback has started but the display won't switch to the stream for a few seconds. When viewing an RT live stream for example, it will exhibit this behavior and then the video will start/stutter and be in sync for a couple of seconds, then it will sort of skip and fast-forward for a second or two and be out of sync. I've played with various combinations of syncing audio via PLL adjust, syncing refresh at start/stop, etc. to no avail.
This also appears to affect the Retrospect addon, although I think it eventually syncs up... need to play with it a bit more to see exactly how that behaves.
Is this a known issue? Does the RT addon need to be updated or would the Kodi migration wizard solve this problem if it's allowed to run?
Edit PS: previous version was LibreElec 7.03? I can't find it in the downloads section anymore but it was the latest 7.x version for the Pi 2/3.