No Heirlooms/Will arriving after sim dies

I'm on the 3rd generation of a legacy, Generation 1 had heirlooms that passed down no problem, but when generation 2 died, nothing ever came in the mail. No wills, no heirlooms. These sims weren't my active household when they died and it's been about 2 in-game weeks. I play with mods but I've disabled them all and reloaded, nothing changed. Those items also aren't in their previous home or inventories. Is anyone else having this issue?