I am so annoyed.
I got to part in this quest chain after i poisoned the wine supply. Maven tells me to go back to Byrnjol. He is no where to be found at all.. He should be in flaggon and not there. I reload etc and nothing. I checked on websites seems used to be a bug. I tried these codes some suggested and nothing. Was advised if i really wanted quest line would have to make new char. So as my char is a thief and level 9 i started again today. Get to same part in quest line and its happened again!!
This is beyond a joke I wasted so much time restarting for nothing.
I emailed Bethesda last night when I had the problem first time and no reply.

Is there any way around this bug? I saved before i spoke to Maven and this didn't help by reloading etc.
Just seems unfair there is this bug in such an inportant fun story quest line.