Raid groups are killing the nightfall scenario event

its bugging out the credit for the kill at the end. non raid group event participants are getting excluded on kill credit.

This has nothing to do with raid groups. Many shards are just overpopulated because of the number of people attempting to do the event, and when the lag is too severe, the end boss kill credit fails for nearly everyone present.

So ignoring the garbage is the best way to go ?