Puppy death messages in event log, even though I don't have puppies.

For the last several days now I've been receiving messages in my "activity log" that a puppy has died and not been stored, the problem being that I don't have any puppies at the moment. I did have a mass death event about 1-2 weeks ago where my temporary "Dynasty List" was full and not tracking any more wolves, and it was only after that I started getting these notifications each roll over.

That message is not about pups dying on that rollover but about the already dead pups' information being permanently deleted from the dynasty.

When a wolf/pup dies, it goes to the dynasty, where you can decide if storing them (to be able to check on their infos in the future) or not. You have 7 days to decide if you want to store them or not and after those 7 days are up, the game delete the information and it can't be retrieved.

That's when you get a notification in your user log about the dead pup's information being deleted.

At first I was a bit confused too and thought it was saying that the pup had died on that rollover, but it just refers to dynasty information. You are probably seeing the "aftermath" of the death event you had 

Ah OK. That makes sense. Cheers for that!

I also had this and submitted a bug report. But it was confirmed that it is just the notification about them not being stored