Re: disappearing tombstones

This happened to me as well. I had the urn in my Sim's backpack and when I tried to place it on the ground it would be invisible. I solved this by placing it on a table. You could leave it there for them to grieve. Since I wanted it in the cemetery, I went into buy mode, picked up the table and put it in my family inventory. I was then able to place it in the cemetery. (my Sim owned the cemetery)