What gameplay feature is this bug affecting?
Breeding DU lioness

What's the issue? Please include any error messages you receive and as much detail as possible.
I have a double uterus female who just got out of her latest cooldown period. Earlier this day it said: "This lioness is in heat and will be for -17 more days." yet I can't breed her. What does it mean?
Even though the breeding option is there, it won't go through. I put a lion scrotum on her but that can't be the reason. I highly doubt it.
I submitted a ticket to lion & lioness (issues with breeding), but they couldn't do anything except remove the text quoted above so now it just say that she'll be in heat for 3 more days, like normally.
But when I press the breed button a text saying:"You cannot breed a lioness who is currently unavailable." shows up. I don't understand how she's unavailable, I can't do anything with the lioness. Just this lioness has the problem.

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
Her id: [794149517946]

It's only this lioness that I can't breed. The others are fine and able to be bred.

Any screenshots you can provide us with?
Can't upload any pictures. Don't know how.

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:
My DU lioness just finished her cooldown, so I planned to breed her today while using my first special breeding item.
It said: "This lioness is in heat and will be for -17 more days."
I thought nothing more of it and pressed "Breed"..
I used a lion scrotum on her and then tried to breed her.
But it didn't work. The text: "You cannot breed a lioness who is currently unavailable." kept popping up after I pressed the button.
It makes no sense for her to be unavailable since she's not a hunter nor do I sell her heats or anything like it.