Auto-explore stopped in front of a stealthy being

I was using auto-explore when the PC entered a room and he stopped with the “Enemy!” message… but there was no visible being. It was a stealthy kobold. The tooltip for the stealthy being also was showing the full information… which is a bit odd. I guess it should only show the being data once you actually have interacted with the being (e.g. by attacking it or when he attacked the PC).