Spoilers to what I believe is the end (or near end):
After the dual encounter with Ivan and Nasha, Yvon and Lloyd's scene in the main entryway by the statue results with Lloyd stuck in a walking animation. This could be because I did not speak with the ghost painter in that room since I didn't even enter that room until the robots started to take over the mansion, resulting in the ghost just standing right next to them. Another possible factor is that I didn't run into Nasha prior to that scene. Tried again from the Ivan/Nasha encounter to see if it were a fluke, with the same results.