The bees are becoming aggressive despite having a campfire underneath the hive/nest.

I made a bee farm where a campfire is directly 3 blocks underneath each hive. Each fire has a moss carpet on top so the bees dont get burned, and yes, the smoke does reach the hive Yet, each time i use a bottle to collect honey, the bees get aggressive. But what's even more confusing, is that only one bee gets aggressive from the hive. It hits me once, is happy, then dies a few seconds later(which is understandable). I'm confused on why all this is happening even though the smoke from the fire should resolve the issue of aggressive bees. Thank you for you time!