FAMILY TREE - Sims that are deceased not being ‘greyed out’

This bug has been going on for a couple of years now. I have looked on the forums and people are still complaining about it, but nothing has yet been done. I urge the Sims team to sort it because it’s really frustrating. When you look at the relationship panel or family tree the deceased Sim is coming up as if they were still alive, although it says ‘deceased’.. 

It’s not good for accurate gameplay. 

*(I have used another simmers photo as an example)*