My heir doesn't grow

[LittleFido]

Hello, thank you for your report.
This is a known issue, restarting the game should cause him to start aging again.
We are working on a fix.

 

[LittleFido]

I see, could you upload a copy of the game to google drive or similar and share it with us?
This might be a similar but unrelated issue then.
(Had it happen in my Ironman as well, so I know the feeling)