Tvheadend

debian 11 updated and docker
HTS Tvheadend 4.3-2120~g18effa8ad
For the last couple days, I see this in the lower section of the webui:
Executing "/usr/bin/tv_grab_file"
/usr/bin/tv_grab_file: htsmsg_xml_deserialize error Unknown syntatic element:
/usr/bin/tv_grab_file: grab returned no data
iptv: m3u parse: 0 new mux(es) in network 'IPTV Automatic Network' (total 272)

I've checked the web, seems there were issues sometime back with this error, Bug #2124, Bug #3283
As a work around, I'm using socat to get the info into the epg.
Thanks