I got the catalyst for the Polaris Lance yesterday, and I have been having issues with making any progress for the Perfect Fifth kills. I've already completed the Enemies Defeated part, but I've so far made no progress towards the 50 kills with the Perfect Fifth explosion. I've tried researching for any methods to make progress, but I've found a few different methods for the kills to count towards the progress (kills the AoT burn after the explosion, multikills with the explosion, these were the main two that showed up). I get the feeling that this step is currently bugged, or it could also be that the step is not properly instructive at to what you have to do to make progress for the step. Either way, I hope that anyone at Bungie sees this and tries to do something to resolve this issue. Many thanks, Blazey, a Hunter boi