What gameplay feature is this bug affecting?
Any cubs being born.

What's the issue? Please include any error messages you receive and as much detail as possible.
This shows on the "Father" of the cub:
*G2 Vhagar's Dominion* (Deceased)
When you go into it it shows:
This lion doesn't exist.
And when I look at his View All Cubs Bred:
Also shows: This lion doesn't exist.
He is very much alive.. ??

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
All cubs everywhere is doing this but here is one of them:
https://www.lioden.com/lion.php?id=794228328153

Any screenshots you can provide us with?




Please provide us with step by step explanation how this bug happened so we can attempt to replicate it. If it's complex, please include screenshots where possible:
I was just checking out my cubs today and tried too look at my king and noticed it, and then I looked at other cubs from other dens and they also was showing the same thing..