I was seeing what ruins events were triggering, and I disabled all mods so I assume the ruin events are in the base game. One of them had a dragon that said if I maddened the dragon it would do 10 damage, spawn a dragon, and drop a cache of 50 gold. The first two happened but the cache was empty (0 gold but still there, looting it said it had disappeared but kept the modifier there)

The vinerva's seed event doesn't seem to be triggering either. Grabbed a seed and went to a gold-liking ruler's farming community and infiltrated it, but did not get 75% shadow boost. Same thing with an elven ambitious city ruler who did not infiltrate.