First off, great mod, and thanks to all the people that are involved in bringing this together.
I've been really enjoying it, but I've ran into some issues with the South Wall Corner Club. Initially the only problem was that it was really laggy in there, but shortly after completing all of Sugar-Lips' missions, the game started crashing sporadcally in there as well. Now I've noticed that some of the NPC Merchants/Trainers no longer have the options available to buy or train. The icons just disappeared from their dialog. This happened with Sugar-Lips, Sottilde and Only-he-stands-there. I tried going back to a save from a couple hours prior and the problem was gone, but when I came back later after doing a quest in Vivic they again were no longer training or selling.
I don't think they had anything I can't get elsewhere, but I was worried this may start happening in other places. Any ideas what could cause this?

That's normal behaviour -
That's normal behaviour - NPCs offer services depending on ingame time. Come during the day and they'll have services available.