What gameplay feature is this bug affecting?
King's marks in dynasty

What's the issue? Please include any error messages you receive and as much detail as possible.
So uh.. my king has extra marks in dynasty.

https://www.lioden.com/dynasty.php?id=56390

He did not have slots 13/14/15 unlocked, nor did he have hidden marks there (as far as I remember). Regardless, they're not showing up on his actual image.
EDIT: Oh uh his dad has those, so maybe they were hidden. Regardless I did not unhide them.

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
https://www.lioden.com/dynasty.php?id=56390 here's his page

Any screenshots you can provide us with?
//too lazy to take them but it's all right on his page x.x

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:
I was just looking at his page and noticed he had some extra marks on there.