Oh mine was firing. She was getting visited every night for months. I had 2 at first, but the puppet leader event wasn't firing so i went to then 3, then 4. The 5th one got to max gold and then the visits stopped all together.
To get the events to fire, you need to have submissive and be alluring/desired/obsessed and they need to have less than 50 morale and have hypnotism, dominant, or dominator. Unruly helps, along with unscrupulous but they aren't required since it only affects the morale they can initiate it at. They just need to have one of those three and NOT have submissive.
Back when it was first implemented, it required you to have 5 slavers visiting you and demanding max gold. That's why I went to 5 and that might be why it stopped firing once the 5th got to max gold (120). Later updates allowed puppet leader to fire without all 5 visiiting but I've never been able to have it fire; no matter on the normal game or this modded one. And tbh this isn't the place for tech support, it's just a mod of the game. Bedlam would know way better than Frank