Potato eggs?

[WhatTheCluck1]

I can’t figure out what’s going on with one of my hens! Someone has been laying these strange misshapen eggs for the last week. Anyone have any ideas what might be causing this?

Side note: I also found what looked like an egg white inside a different nesting box — no shell and no yolk. I don’t know if it was the same hen.

 

[sourland]

Such eggs can indicate the beginning or end of a laying cycle or the possibility of reproductive tract issues.

 

[nuthatched]

https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/
This might help you, of its a new layer, it might be the system working itself out. If it's an older one, there could be a reproduction issue.