Judging by your timeline, it seems LVO is currently processing files transferred in Aug. Mine got transferred in early Oct so I guess it's going to be a while.AOR 12 June
Medical Passed 11 July
IP2 11 July
Back to NA 27 July
No additional documents needed: 27 August (presume that's when file moved to London).
IP2, RPRF and additional info on 30 October.
I used to think PPR followed quickly after RPRF but I've read many posts today from people that paid weeks ago and no movement so a little disheartened now. Still hopeful of getting it by the 6 month though as long as the visa refusal isn't an issue. I was in a relationship back then with a Canadian born citizen in 2003 and was advised to apply under the Family common law class. The visa was refused because we were not living together (not generally accepted in my culture) but the visa officer did acknowledge that the relationship appeared genuine "but did not meet the criteria". That relationship ended a couple of years later and I am now married to someone else and have two kids. I don't think that visa refusal should prejudice this application but it may delay it if they want to do extra checks. It's a little like getting rejected for NOC mis-match I think. No suggestion of having done anything wrong.
All the best! Hope you get the PPR email soonest