Okay. Now I'm confused. Could you please explain what you mean by " Did you already visit the hatching grounds? IIRC if you do that before Hot Gossip starts it never happens at all, it's meant to point you towards seeing her again."?Those quests don't impact the content added in 3.62.
Spicy and Gnomes don't impact Vixenatrix's content. Also, those are the only mods which are safe to use with the game, use other mods at your own risk.
Did you already visit the hatching grounds? IIRC if you do that before Hot Gossip starts it never happens at all, it's meant to point you towards seeing her again.*
Vixenatrix's dialogue when you see her after Hot Gossip starts suggests it's not available until after she actually lays her egg(s). So the day after Day 20 or later. But I think I saw something where if you use saves from an earlier version you might need to sleep several nights (5?) to trigger it.
*Personally I would have liked a quest from Jacob to fetch more sheep from Greyport. Having a full flock again the very next day seems off to me. But that would require making a business in Greyport to buy them from and I don't think the Pet Shop would fit the bill.
If by "the hatching grounds" you mean her lair with all the gold, then there's nothing there.
After 10 days in the new version, I visited her in her lair and there's still no mention of her egg(s) being laid or any change in dialogue (options) compared to the previous version. The villagers have no change in dialogue either.