https://www.gamespot.com/articles/destiny-2-dev-acknowledges-the-serious-problem-wit/1100-6455470/

One of Destiny 2's newest Exotic weapons, the Prometheus Lens, is causing some problems right now in Crucible. Due to a bug, it is significantly overpowered, which is not good for the overall balance of competitive multiplayer.

Bungie is going to address this with an upcoming update, developer Jon Weisnewski said in Bungie's newest blog post today. This update is coming later this month. It's good to know a fix is coming, but that doesn't make it any less painful right now for those on the receiving end of it's crushing power.