@plasticmind
Not sure how relevant this is for you, since you've already mentioned a lack of interest in updating this mod for the old Studio, but maybe somebody else might find this useful information: the last pre-4/28 DLC graphics patch makes the old Studio unable to recognize the updated character cards, so the character list will remain blank.
(Oh, and thanks a million for all your hard work on this mod. For some reason, I've only just started using this graphics patch, and I can't believe how much more awesome the game looks. Truly yours is an indispensable set of mods :))