I checked a few days ago but mine still did not show anything for assignment. Just checked now and my portfolios shows up in the drop down box. Assigned them so I'll see tomorrow if it is passed to the LC API and that API actually is working. Nice.
Of course, I was daily going to LC Portfolio report and it would tell me how many notes were unassigned ... so I could see easily how many were invested in that day. A couple clicks and I could assign them from within LC. Of course now I will just go to the BV dashboard tab, Recent activity area, Notes invested (24hr) count/number.