I keep having issues with the BT TV Pro box I have.
It stopped recording, recordings all said unable to record - so I reset it. Started working again. OK for a couple of weeks.
BBC channels kept going a solid blue colour, the TV guide went blank and refused to load so I had to reset it again, seemed to be OK for a while.
Today the whole box was reset and back to factory when I turned it on, I was surprised to see the set me up prompt, I had to find a guide on how to pair up the remote again. (home key and 7)
Anyone experiencing similar instability, I don't know what will happen when I turn on the tv.
It is working again now. Support says I need an engineer to "look" at the box, but of course if it works OK for a week or so, then it would be a waste of time for everyone. The engineer won't see anything useful.
Well given that you have had at least 2 malfunctions (record function not working) and what appears to be an unexplained full reset on box startup (losing recordings) I would go down the engineer visit route and expect to have a replacement for what is I presume an on loan box. unless the engineer can demonstrate reasonably a probable cause of the failings ( ie any isssues with your cabling , connections, housing of the box) .
Make sure that BT are aware formally of the issues you have experienced with the box.