I was doing a lot of thieves guilds repeats before 1.6, when bored. This was because they
were one of the only areas that I could enter, or leave, without getting a system lock back then
(1.6 fixed that.)

Anyway, after running around and doing the billions of things I could not do (after 400 plus hours of play, with system locks
cropping up), I bothered to go back to Devlin and vex to turn in two completed ones I had.

Upon visiting Devlin, besides the turn in for the Bedlam job, I see...

I finished that special job in Windhelm

I finished that special job in Solitude (as well as other areas, something like 4 total)


The thing is:

I finished those jobs eons ago.

So did 1.6 evidently fix you not getting a response from him about those?

Its not raising my number of completed quests, though, I'm still at the bugged -16 thieves guild quests done.
Upon getting his and vex's quests, I am -18. Upon turning them in, I'm at -16. Then I'm at -18 again.