Leather self fragging?

[TrampledByEwoks]

Hi All!

Wondering if I could get some opinions on what might be going on here. My toadstool that is many years old and usually very happy has form a hole and started splitting from an edge for the last week or so.
It might be self fragging but I’ve never seen that in person so hoping to get opinions!

 

[Formulator]

Look underneath it for babies

Mine did that about 6 years ago. Now there are a pair! The “child” actually outgrew the original for some reason.

 

[TangerineSpeedo]

Yep, thats what they do...