Had a Chaos waste expedition yesterday where we got the Slaanesh curse “Glory to Greed!”, but no floating black pinatas were spawned during the whole level. The level was Grimblood’s stronghold.
The level before was a Shrine of Fortune, and we had purchased both Smednir (increase pilgrim coins but take extra damage) and Ranald (elites drop items on death). I’m thinking the last one could be tied to the bug, since it also affects drops. The elites did drop items, but no pinatas, and as such, we got no coins during the level.
Well, at least we got to spend 200 coins to take extra damage. 