Majorawesome1 posted a a video while he was playing as Genji and run it to a terrifying bug. He found that Dragonblade was not ending. He could swing away easily while jumping around to every enemy.
Genji’s Dragonblade lasts six seconds, but this bug brought Genji to an endless killing rampage
This morning, a post was made by Findanother1 on /r/Overwatch about how to reproduce this bug. His post and video can be found here.
We should get some traction on this issue as soon as possible. It looks like the time-frame necessary to allow this is incredible short, but there’s still good chance of this being exploited either way.