Tvheadend

Hey
Running HTS Tvheadend 4.3-1789~g6bfeca6c0 in docker.
I can see the channels in the web interface, but not from within kodi tvheadend client.
Kodi client connection can be seen in the connections and via docker logs -f tvheadend.
I have tried to map the channels, but the service hangs on some channels.
Is there a method, via docker exec -it tvheadend /bin/bash, to start/restart the channel mapping?
Currently, I am using docker restart tvheadend
Pointers appreciated.
Thanks