Upvote:5
This is not uncommon in some countries: I've been asked to show my ID card once at security at Kutaisi airport.
It was a random check, and they may note down specific details about you. In other words, no cause for concern.
Upvote:5
It is not possible to answer this conclusively without asking someone who works at the airport. But, don't worry, there are many, many valid reasons that have nothing to do with you. Some possibilities:
Such things happen all the time. If you were in any 'trouble' they would not let you just walk away.