Hi, friends! This problem persist since tvheadend-git-4.1.r1787.g9abcbec version and on all latest up to tvheadend-git-4.1.r1834.g957b835.
systemctl stop tvheadend.service output:
апр 04 09:59:10 KODI systemd[1]: tvheadend.service: State 'stop-sigterm' timed out. Killing.
апр 04 09:59:10 KODI systemd[1]: tvheadend.service: Main process exited, code=killed, status=9/KILL
апр 04 09:59:10 KODI systemd[1]: Stopped Tvheadend for user vis1.
апр 04 09:59:10 KODI systemd[1]: tvheadend.service: Unit entered failed state.
апр 04 09:59:10 KODI systemd[1]: tvheadend.service: Failed with result 'signal'.