Failed to tune FreeSat UK on Tuner B
AutoBouquetsMaker tunes to following when reading Freesat.

Code:
        orbital_position="282"
        frequency="11426000"
        symbol_rate="27500000"
        polarization="0"
Polarization 0 = Vertical
Polarization 1 = Horizontal

I'd say you have an LNB fault. Can you test with another dish (not with a wideband LNB for Sky Q). Obviously maintaining social distancing rules.