Tvheadend

Version of TVHeadend? 4.2.6
Running on what OS and version? Freebsd 11.2
Package that came with the OS or something you compiled yourself? package that came with os, followed https://gist.github.com/dreamcat4/f0e61d35f656afde5df6
Adapter/tuner chipset or make/model? No Tuner IPTV m3u
Detailed description of problem :

Hello,
The same title with the same episode numbers is recorded from different channels, looks like the duplicate rules are applied per channel only and not per autorec rule for all channels.
I have autorec created with description not containing any episodes numbers and didn't specify specific channel as i want it to search all channels epg for it but not record any duplicates as i only have 1 ip connection to service provider at a time.
Attached are the pictures of the autorec settings and upcoming recordings, notice that different subtitle version are listed in upcoming recordings and i tried different duplicate handling settings (listed below) but they do not work.
All: Record if different subtitle
All: Record if different episode number
All: Record if different description

Please let me know if i am doing anything wrong or if i need to provide more information? Please see attached screenshots of upcoming recordings and autorec rule settings.

Thanks,
Oleg