I have had my Aura box since May 2022 and love it, no real issues except the FF issue (but I have never used deep sleep as it takes too long too start).
Recently though Some channels and most noticeably Sky news started pixelating which made me think the aerial had moved in the wind but on checking the signal test I was getting 100% signal but the quality was jumping up and down between 50-90%, main channels were 100/90%
It just so happened that I got a message from my council that anyone getting pixelization could be the result of 4/5g signal interference following the sale of signal bands to mobile operators and further expansion of bands being used. I thought I might give it a go as its free and 5g is slowly being opened up.
Generally they will send you a filter through the post but if you have a mast head amplifier (I did) they send a free engineer.
Anyhow the engineer tested my kit and said I was getting interference he fitted a free mast head filter which immediately cured the problem.
He also offered a free attenuator as he said my signal was too strong which which I also accepted so ne fitted a second filter on the lead behind the Aura and a attenuator, again all free.
The filter and attenuator he fitted behind the box were simple in-line units about 50mm long with a male socket one end and a female the other of each.
After the engineer left I noticed a bit of pixelization on the main channels that I did not experience before so I removed the second filter and attenuator just sticking with the mast head filter.
After a rescan (you must do this) everything was 100/100% signal & quality, I was pixelization free again!
I am very happy and after reading other people with problems suddenly starting, it could be the same, interference being picked up by your aerial.
Its a free service funded by the sale of the signal bands to mobile operators and the local engineer I had out was fantastic telling me not to let anyone replace my aerial as I had a perfect setup.