Board Game Arena

I wonder what this is - and if any of you encountered it.

The opponents card was visible face up before I chose mine. I had not played the card for this effect.
It happened twice - last time with the Djinn.

Should I report it?

This happened to me as well in this game: https://boardgamearena.com/1/cardia?table=733841732
which I won, unfairly, but what can you do?

Please create a bug report at https://boardgamearena.com/bugs?game=2374 - but please first check if there is already a bug report for the same issue (in that case, you should vote for the existing bug report instead of creating a new one).