Firstly observed on latest LE12 Nightly versions, after upgrade to LE13 the issue is still there. Ocassional Kodi crashes when watching LiveTV using Tvheadend42 & DVB-T2 USB key. The crash usually happen sometimes, as soon as I go to TV/Channels/All channels menu or open the TV Guide (TV/Guide/All channels menu).
Hopefully you can find the details in the logs:
https://paste.libreelec.tv/simple-lark.log
https://paste.libreelec.tv/tidy-bug.log