Hey, I found this post looking for info on selling notes, via folio. You seem to be a veteran, but just wanted to say incase it's helpful, I am new to Lending Club the last 6 months and also found it hard to fill some of the lower grade notes I wanted with the automated tool. I then did some research and found it was perhaps a speed issue, Lending Club's automated option is not at the top of the pecking order. So I tried BlueVestment, a paid robo tool, to get the rest of the cash invested, and it worked right away. I was getting notes I couldn't get before.
BlueVestment does charge for orders it fills, but it's not a lot and if it's only a potion of your portfolio the tool can be free as the first $1,000 is free. then 0.45% fee for 1-5k. Anyway it worked for me. Why Lending Club is letting 3rd party tools be quicker than it's own tool is a mystery, but it is. their are other reasons people use BV, but for me this was enough reason.