I cannot complete quest: Belle Epoque: The Marmelade Revue. I build my 1st hotel in the Old Worls, also here I started the tourist quest chain. Then I moved to the Crown Falls and there is my Iron Tower monument. I started the quest in Cape, but it is assignes to the Old World, then I do not have the monument.
All quest items (people to collect) are makred on the minimap in the middle of ocean:

I checked all of my hotels, Moorings and the Iron Tower (in Cape and in the Old World) I cannot find any of dancers.
Best regards