OK, so after several hours of testing Tvheadend Server 4.3 (Alpha) 9.80.11.100 - Build: 4.3-1940 ~ LibreELEC Tvh-addon v9.80.11.100 (2021-03-10T21:50:53+0100) on LE 10 Nightly, build 20210313 running on RPi 4B / 2GB RAM, boot from 2,5" HDD with USB-SATA adapter, I'll have to revert from Tvheadend 4.3 Alpha to Tvheadend 4.2 due to several serious issues in my case:
- invisible Network name in menu Configuration - Networks despite it's there
- Services from one MUX (originally added as second one) are missing in Services list despite the Network Force Scan show detected Services on it (16)... I tried to Map all services - mapped all except the "invisible" Services from that specific MUX and the Map report said "16 ignored" which is the count of Services from that MUX - really strange, I did not encounter something like that on Tvheadend 4.2. I tried to delete the affected MUX and recreate it but the issue is still same. Tried to reboot & reconfigure but could not fix that, it's really strange and the MUX with specific frequency couldn't be used anymore.
- Kodi sometimes gets frozen or restarted
- the Timeshift offset point still sometimes jumps outside of Timeshift borders during seek and gets messed
- still encountered Timeshift data unexpected cleanup
- subtitles not displayed despite enabled on some channels
- some EPG items corrupted (cut at start), the same issue was in Tvheadend 4.2
So no positive change in my case but many additional and serious issues with Tvheadend 4.3 Alpha
Edit:
- I have "fixed" the MUX with invisible Services issue - needed to create exactly the same MUX more times, after second - 4th addition the Services from that MUX appeared by magic, then deleted the previous - not working MUXes.
- subtitles works on most channels but on some does NOT work
- I have reduced the Timeshift RAM buffer to 500 MB only to try improving Kodi / Timeshift seek stability. Unfortunately it did not help and I have seen again the Timeshift data unexpected clean & Timeshift stop
- the Network name missing in Configuration - Networks menu is related to web browser version. In older Chrome it's OK, in Chrome 87.0.4280.141 build it's missing.
Edit2:
There's a serious bug in the mentioned Tvheadend version - at least in my HW/SW configuration the Maximum size (MB): option in Timeshift settings is ignored so it may lead to unpredictable results.