Tvheadend/HDHomerun emulation

Does anyone use tvheadend and the HDHomerun emulation?

I'm having strange issue where channels wants to play a URL which it doesn't seem to provide, the discover.json shows a lineup.json correctly listing e.g.

http://192.168.70.22:9981/stream/channel/36b72908f140975b29f5509c7be5c585?profile=pass

but channels' log shows

[ERR] Could not start stream for EEBCCA2F ch101 101 BBC One SE HD: GET: http://192.168.70.22:9981/auto/v101: 404 Not Found

I'm a bit unsure why it's choosing a different URL.

Emulation won't work

Use an M3U with Custom Channels source

Thanks - is there anything I can do to make it work/so channels doesn’t think it’s emulated?