That is entirely possible to be a error with the gallery. I kind of fogot about it and added it at the last minute. I'll take a look at it and get it squared away.
The Gala scenes are completely different, there are some smaller modifications in the others. The investigations are completely different as well and some of those have some sexy scenes as well. I do have plans on adding more prism scenes down the line (much like what I did with Kiara and Blaire) and most of those will be path dependent
Can you send me a save? It should trigger after some time (I think a week or so but I may have shortened it). If it's broken, I can give you the console code to get you back on track