The strangest shit happened to me this morning.
So I was playing the most recent Android version and went to the Store. I sold all the yukkuris except Chen, and then I decided to play around with it a little before getting it pregnant. So I feed Chen with three hearts and it naturally gives birth to a seemingly-normal ko. Anyway, I decide to sell Momma Chen (not before raising its value) and feed the ko two cakes before bringing it home.
Little Chen eats the cakes, and then I pick it and head to the door. But as soon as I spawned back home, somehow Chen had Patchouli's hat on, their feet were completely charred, and was in severe pain.
One thing I should note is that Chen's momma was previously attacked by Remilia when I used the Reset Yukkuris Position button to get them all out of their cages, and I had to pick the green hat from the stands to pacify it because I couldn't find her original hat. I can understand if giving momma Chen another hat might glitch the baby's hat (even though the ko had its trademark hat), but how do you explain the charred feet?
Feeding the burned Chen with hearts also reduced it's Lifespan meter down, and as soon as it reached 0 it slowly started losing health and value! (something that I was wondering about a while ago in regards of the yukkuris' Lifespan meter in the game). You can decrease the process by giving it lots of Juice bottles, and you can outright stop the countdown by feeding it with cakes.
So that's one mystery down, now to investigate how you can get to raise their Sexual Desire meter.
And speaking of their refreshing animation and pregnancy chance, it seems that grabbing them and force-rubbing them on their partner speeds up the process, but it's still a matter of luck if they initiate their refreshing animation. Not even bringing the Pregnancy settings all the way to 1/2 seems to change things. Here's hoping that BlueSnow improves the AI enough to make things more interesting.