Thanks. EF is now showing Economy award availability for the flights from LHR and LGW (but as you say not LCY) to EDI but still doesn't show any of the available award inventory in Business. That problem appears to apply to all dates not just November.
Yes, I could report problems like this to you by email in future but of course it requires cross-checking my EF award searches against the BA website to know it there is a problem and that rather defeats the purpose of using EF in the first place!
I'd be interested in the experience of any other FT members who've regularly searched for BA award availability on EF. Have you been able to get reliable accurate results?