What gameplay feature is this bug affecting?
Lioness Age and Heat

What's the issue? Please include any error messages you receive and as much detail as possible.
Basically, I recently attained a female felis with 1 more heat left and yesterday (yesterday meaning before RO at 2:05am LDT) was the day before her last heat (which was at 14 years old, which provided only one day to breed her) when she was 13 years old and 11 months.

At 2am, I started panicking because I noticed that she was now 14 years old and therefore I had only 5 minutes to find her a stud (I didn't roll right at 2:05am LDT so the stud could get her before I rolled). I don't have proof of her aging but I swear she was 13 years old and 11 months earlier that day.

Though I have faith in my own memory, I do not doubt that it can be patchy at times. If in any case, my memory is incorrect and she really was 14 years old as of yesterday (before RO) and I merely didn't notice, feel free to tell me directly ;-;

Thank you, Mods, in advance for helping <3

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
This Felis girl is the one that supposedly 'aged' before RO happened.

Any screenshots you can provide us with?
No, as I didn't screenshot her age before and after I noticed the proposed bug.

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:
As I am not entirely sure how this came to be, I don't have any proof of how it may have happened.