What gameplay feature is this bug affecting?
Breeding/Litter Sizes

What's the issue? Please include any error messages you receive and as much detail as possible.
One of my lionesses gave birth to a litter with 5 cubs, even though cub litter sizes are normally 1-4. She does not have the double uterus mutation. The only breeding item used on her was a chasteberry to increase her fertility.

In my daily rollover summary, it reads:
"Kennedy #794131164412 has given birth to 5 cubs: #794226994159, #794226994160, #794226994162, #794226994163, #794226994164!"

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
https://www.lioden.com/lion.php?id=794131164412
^ This is the lioness in question

Any screenshots you can provide us with?
N/A

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 used one chasteberry before breeding the lioness in question (#794131164412) to my king (#184074).

Nested her on her last day of pregnancy.

Upon rollover the next day she gives birth to 5 cubs.