EES Problem in Rome (FCO)

I entered Rome for the first time yesterday, and I was registered for the EES system. I scanned my passport, entered the booth, scanned my fingerprints, then I think it may have tried taking a picture of me with a note at the bottom saying “0 days remaining”. However, I never even went outside the US. But when I asked the lady bringing people in she said it’s fine and made me keep going. Did anyone have this issue? If so how did that impact you exiting or re-entering the Schengen area?? I mean the lady working it said it’s fine but I was told to keep going through, so I don’t know if I’m paranoid or not. I’ll be exiting in Zurich in a few weeks, so I just wanted to know if this will hinder my travels or not later down the line. Also has anyone experienced this before? Thank you!!!