LHR-ABZ-LHR seems to be being reduced from seven to six a day with the late evening roundtrip being chopped and the LHR-ARN-LHR late roundtrip is also blocked from sale in the GDS.
I was due to go on the last MAN-LHR of the day on October 30th (BA1407) however I got an email today saying it's cancelled and I've been rebooked on the earlier BA1405, a quick look and that flight isn't available all week so I'm guessing thats been chopped too? (The replacement flight isn't any good for me so I'm going on BD595 instead)