I think there's a slight issue with the leads then, because when I originally started the maid investigation event the leads said there was no more content in this version, same for Roxy until I started to do more of the events with her.
Viewing post in Corrupted Kingdoms (NSFW 18+) comments
Roxy doesn't have any leads - she only has hints in the heart menu card. As for the other leads, I've checked my code and I can't find any misplaced "no more content in this version" text, so if you can tell me which leads specifically were showing that (which then let you continue) I'd appreciate it.