Same here!!!
Everybody has a quest for me now,,, I thought, oh great! ...but it's stuff that I have done already.
I'm guessing that since I sold all the previous lower level weapons and kept only the highest level ones of each, for example, I have a pirate blade rank 4 from the original game quest and sold all the previous lower rank ones, same with pistol, etc... who wants a rank 1 pistol, single barrel !?!? I sold that stuff up... and that's where I think that the root of this problem lays...
it makes no sense to have a lot of space if you can't get rid of lower useless stuff...
I sent a bug report, I know that I've done all these quests a while back,,,