What gameplay feature is this bug affecting?
Den Page statistics?

What's the issue? Please include any error messages you receive and as much detail as possible.
After i chased away some pregnant lions i noticed that on my den page it said i had -10/200 cubs. These lionesses all had gotten ultrasound which could have caused the game to believe i had cubs when they weren't born yet?

I'm on firefox 85 using Windows 10.

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
den page

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:
1. Have pregnant lionesses
3. Ultrasound lionesses
4. Chase them