I'm having a similar issue. Casket Sale, Celebration of Life, and Afterlife Anonymous will not spawn. There are also no event notifications for those events. I've had a sim wait for multiple days at the event locations and nothing happens. The rest of the LD festivals seem to work fine, with notifications and information pop ups.
Having this exact problem in my save as well. Didn’t even know the casket sale or celebration of life were a thing because those have never spawned. Trying to complete the afterlife anonymous task for the tarot favour and nothing happens when I go to mourningvale at those times.
