I’ve also had failed recordings lately, but think my conflict lays in overlapping frequencies in transmitters.
Perhaps that’s the OP’s problem too?
With the advent of this stint of high pressure, I’ve noticed the Aura’s started picking up transmitters as far away as Yorkshire, possibly Emley Moor.
It doesn’t help matters either when CH55 (COM8) is in use by both Moel-y-Parc and Winter Hill (and Emley Moor?), so for example during viewing a prog on BBC4 HD, it can be alright for the beginning of the prog, then the picture freezes mid-way & the signal quality starts wavering between 100% and 0%.
Tried retuning when this happens & the Aura tends not to even pick up CH55 afterwards, no matter what “region” on the Aura’s freeview tuner is selected.
Retune the next day, and it miraculously appears!
I intend to bung an attenuator back in the mix to see if it’ll help then get a different aerial (log periodic or small Yagi), but in the meantime going to rely on my Freesat for main viewing/recording for COM8 channels as a workaround.
https://www.aerialsandtv.com/knowledge/transmitters/rowridge-transmitter/how-to-combat-co-channel-interference