Duplicate bosses and enemies

istareatthesun

I can't tell what is causing it, but sometimes bosses and enemies are being duplicated and... it's... not... fun. I think it happens when my world is syncing up with another player's world, but I'm not entirely sure. This has kept happening post patch (PS4).

Raytruth

confirm, here a pic
http://imgur.com/a/HN7JI