Tvheadend

Hi all, hope you can help me please.

I have searched the forums and the web high and low and I just can't find out why it's doing what it is.

I had a RPI3, with Libreelec and it worked fine, but due to difficulties in storage (corrupt Sd cards frequently) and power consumption I switched to a small STB case and a nVidia ion based itx board.
Nice setup, plenty of goodies and best of all, plenty of recording storage.

Now I installed the same libreelec (ok might be one revision newer), and their Repository has version 4.2.3 of TV Headened. Installed that.

When launching the wizard, I choose preferred EPG lang to English, click next and it asks me again for what epg lang (odd?), so clicked next again.
Chose the Automatic IPTV Network option, and when prompted put in my M3u url (which spits out TS streams) and clicked next.
From here it just went muxs 0 scan 100% and that be the end of it...

Now the weird part...

having seen 0 everything at this stage, I cleaned up and ran the wizard again, this time, the page to add the URL didn't show (seemed to have been skipped?) so could not add my URl.
Tried again, this time it did allow my url and it did find 380 Muxes out of my 1000 odd..
so ran again and back to 0...
Eventually it did show my 1000 odd but although services showed 800 of 100, the muxes tab only showed 6 with one error-ed out?

I never had this weirdness on the Pi and infact the Pi worked flawlessly.

I will boot the pi up and see what TV headend it has installed, and whether it was an older one..

Bit stumped if I am honest. Any help much greatly appreciated. TV Headend is the only solution that actually emulates a clean STB as if I had a cable/satellite provider (I am from the UK).
Keep up the awesome work, I will persevere with this till it works.

Many thanks.