[b]I was loaded in the Nightfall doing Archon's for Rainbow Medals. Prior to the bug I've done 2 mid level offerings.[/b] I then started a perfected ([i]solo[/i]). And at about the 2 minute mark a random joined. So about 30 seconds in we reach 100% and the middle thing closes like it does to reveal the boss. And after it closing, it just didn't open.. We reached 100% and 1 entire minute went by and it never opened and it said I failed. So a bit of a wasted perfected. Not to angry about that. But the bug itself is a little annoying. Only happened to me once. Thought the devs should be aware of this. [i]I have the recording. But it's just me shooting stuff. And staring at the middle waiting on the boss.[/i] So let me know anyone at Bungie if I should attach it here so you can see it.