Wierd experience at Dublin airport today

Hi today i have wierd experience at dublin airport today. I can back from france today and at dublin airport immigration check when i presented my pakistani passport and GNIB card today.she looked at her computer and then ask me what happened in 2016. And i was like NOTHING.then she said do u have irish passport in 2016?and i said no. She said its nothing to worry about but her system is saying something ealse. I asked her what exactly does it say on ur pc and she wouldnt tell me then. She said its fine.iam on stamp 4 on behalf of irish born child since 2013 and my 5year is finishing in june 2018. Any suggestion what do i need to do about what she said. I know its not a problem but how do i look into it?

Simply claim your Irish Passport from 2016 and tell the immigration to give it back to you LOL! Just kidding.
I think if she said it's fine, then don't worry.
Someone else might give you more info regarding this though.

Maybe a name confusion with the child. I guess the child is irish.