You have to be shooting Oryx in the chest to get that black bleeding effect before the lights go off.

You have to have someone constantly shooting Oryx while the bombs detonate or his chest will close and no damage will be dealt. Another problem that could be happening is that you are having two or more people detonation the same bomb. The rule of thumb is, one person can detonate multiple different bombs, but multiple people can't set off the same bomb. Make sure you designate someone to each corner of the map before you go for the blights. The last thing I can think of is connection. If your game and other people's games register that a person is on a bomb, but the person's game game says he didn't, the game's Debug system (an in game formula to resolve conflicts between each players game to make sure the game doesn't crash) can side with the single player depending on when it updates the players position. If this is the case, at least one person will have a yellow or red bar. And yes, even if one person has a bad connection, the entire game will lag to compensate for the delay. And for questions on the game or asking for help, you should use the Help tab of he forums. There will be forum moderators there looking for people like you and will answer them in the best way possible. If you want to report a possible bug or just have a complaint about game mechanics, use the Feedback tab for the forums. People here will look for multiple occurrences of the same topic and when they do find multiple, they will let the higher up team know so that they can find a possible solution. Also, sometimes check the sticky posts made by Bungiehelp, Deej, or Cosmo. They might have already found your problem and will update the post as they go. Sometimes when you post in Feedback, they will contact you back depending on what you post. The Destiny tab is for discussion of the game in general. If you want to post about a cool loot drop or talk about the lore of a story mission, you can find other posts or post your own thoughts here. You may ask a question about Lore or you may take a poll about people's favorite weapon in Destiny. Hope this helps.

Are you damaging him after the bomb detonates? If he's not leaking black, you won't do damage

Make sure whom ever is detonating returns to the aurora and shoots Him in the chest.

It is possible that the ones in the middle weren't putting enough dps on Oryx to keep his chest open. You have to stagger, four people run to bombs and the other two keep his chest open so the detonations go through. It was one thing that happened to a group I ran last week.

You are likely not keeping his chest open! Somebody need to keep shooting it as the others go for the blights.

Maybe this is what messed it up: The guys staying in the middle when the others set off to detonate bombs (usually the guy with the relic and 1 Titan) have to keep shooting Oryx' chest. Otherwise no damage, even if you get all the bombs.

Who is orix?

Had this problem yesterday on two seperate raids

When you're doing the orbs the middle players must fire on his chest during it or when the orbs are done is health won't go down. Meaning your middle players didn't do their job or weren't inform the importance on firing on his chest

The idiot you got off lfg isn't shooting oryx while youre detonating bombs. But you're the asshole for calling him out on it, then somehow magically next round the damage takes. "It was glitches" yeah and I just imagined watching you pay all attention to a -blam!-ing thrall! Good job! [spoiler]ugh last night...[/spoiler]

Are you having one person shoot him right before/ during the explosion?