I've got en exotic weapon bounty (maybe for Pocket Infinity?) that requires kills in the Nightfall Strike. I understand I have to kill lvl 28 enemies or those in the darkness zone, but I stopped getting credit for all my kills after completing last weeks Nightfall Strike. I've only gotten credit for killing Ultras and Majors (enemies with yellow health bars) and have never got credit for other enemies even in the darkness zone. I entered this weeks Nightfall Strike, solo, to see if it was because I completed last weeks strike, but I am still not getting the credit for my kills in the darkness zone during the Nightfall Strike. I would like to finish the bounty, but it seems like I'm just not able to do so. Is there something I'm doing wrong, or is this an issue that's beyond my control?