Nightfall mission bug

I completed two times that mission, but it appears like I didn’t comple it.
I played the hole campaign and this is the only mission that is not completed.
Help? Same bug?

yeah, Ive had the same problem and ive done it on legendary twice. -Yoink!- me off and im not about to to it a 3rd time to test. Anyone know what this is??

The bug I’m dealing with is cutting off the whole 1st part of the nightfall mission. The current and eveything gone. I immediately am spawned somewhere in what I assume is the middle of the mission. This sound anything close to your guys’ problem?